help reading the crash report

Hi as the Title says i need help reading a crash report generated by testing my mod in a server state. I use MCreator 1.7.3 and am making this mod for a server and as i was testing this is what i got back:

[23:45:49] [Server thread/INFO]: Starting minecraft server version 1.7.10
[23:45:49] [Server thread/INFO]: Attempting early MinecraftForge initialization
[23:45:49] [Server thread/INFO]: MinecraftForge v10.13.4.1558 Initialized
[23:45:49] [Server thread/INFO]: Replaced 183 ore recipies
[23:45:50] [Server thread/INFO]: Completed early MinecraftForge initialization
[23:45:51] [Server thread/INFO]: Found 0 mods from the command line. Injecting into mod discoverer
[23:45:51] [Server thread/INFO]: Searching C:\Pylo\MCreator173\forge\eclipse\mods for mods
[23:46:05] [Server thread/INFO]: Mod testenvironmentmod is missing the required element 'name'. Substituting testenvironmentmod
[23:46:05] [Server thread/INFO]: Forge Mod Loader has identified 4 mods to load
[23:46:06] [Server thread/INFO]: Attempting connection with missing mods [mcp, FML, Forge, testenvironmentmod] at CLIENT
[23:46:06] [Server thread/INFO]: Attempting connection with missing mods [mcp, FML, Forge, testenvironmentmod] at SERVER
[23:46:08] [Server thread/ERROR]: Fatal errors were detected during the transition from CONSTRUCTING to PREINITIALIZATION. Loading cannot continue
[23:46:08] [Server thread/ERROR]: 
   States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
   UC   mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) 
   UC   FML{7.10.99.99} [Forge Mod Loader] (forgeBin-1.7.10-10.13.4.1558-1.7.10.jar) 
   UC   Forge{10.13.4.1558} [Minecraft Forge] (forgeBin-1.7.10-10.13.4.1558-1.7.10.jar) 
   UE   testenvironmentmod{1.0} [testenvironmentmod] (modid-1.0.jar) 
[23:46:08] [Server thread/ERROR]: The following problems were captured during this phase
[23:46:08] [Server thread/ERROR]: Caught exception from testenvironmentmod
java.lang.NoClassDefFoundError: net/minecraft/client/entity/EntityClientPlayerMP
   at mod.mcreator.mcreator_sakuraWood.(mcreator_sakuraWood.java:51) ~[mcreator_sakuraWood.class:?]
   at mod.mcreator.testenvironmentmod.(testenvironmentmod.java:44) ~[testenvironmentmod.class:?]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_101]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_101]
   at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_101]
   at cpw.mods.fml.common.ILanguageAdapter$JavaAdapter.getNewInstance(ILanguageAdapter.java:173) ~[ILanguageAdapter$JavaAdapter.class:?]
   at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:506) ~[FMLModContainer.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
   at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
   at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:212) ~[LoadController.class:?]
   at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:190) ~[LoadController.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
   at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
   at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119) [LoadController.class:?]
   at cpw.mods.fml.common.Loader.loadMods(Loader.java:513) [Loader.class:?]
   at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:87) [FMLServerHandler.class:?]
   at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:314) [FMLCommonHandler.class:?]
   at net.minecraft.server.dedicated.DedicatedServer.startServer(DedicatedServer.java:117) [DedicatedServer.class:?]
   at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387) [MinecraftServer.class:?]
   at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [MinecraftServer$2.class:?]
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.entity.EntityClientPlayerMP
   at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_101]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_101]
   ... 36 more
Caused by: java.lang.RuntimeException: Attempted to load class net/minecraft/client/entity/EntityClientPlayerMP for invalid side SERVER
   at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50) ~[forgeBin-1.7.10-10.13.4.1558-1.7.10.jar:?]
   at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) ~[launchwrapper-1.12.jar:?]
   at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ~[launchwrapper-1.12.jar:?]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_101]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_101]
   ... 36 more
[23:46:08] [Server thread/ERROR]: Encountered an unexpected exception
cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: net/minecraft/client/entity/EntityClientPlayerMP
   at cpw.mods.fml.common.LoadController.transition(LoadController.java:163) ~[LoadController.class:?]
   at cpw.mods.fml.common.Loader.loadMods(Loader.java:544) ~[Loader.class:?]
   at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:87) ~[FMLServerHandler.class:?]
   at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:314) ~[FMLCommonHandler.class:?]
   at net.minecraft.server.dedicated.DedicatedServer.startServer(DedicatedServer.java:117) ~[DedicatedServer.class:?]
   at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387) [MinecraftServer.class:?]
   at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [MinecraftServer$2.class:?]
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/entity/EntityClientPlayerMP
   at mod.mcreator.mcreator_sakuraWood.(mcreator_sakuraWood.java:51) ~[mcreator_sakuraWood.class:?]
   at mod.mcreator.testenvironmentmod.(testenvironmentmod.java:44) ~[testenvironmentmod.class:?]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_101]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_101]
   at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_101]
   at cpw.mods.fml.common.ILanguageAdapter$JavaAdapter.getNewInstance(ILanguageAdapter.java:173) ~[ILanguageAdapter$JavaAdapter.class:?]
   at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:506) ~[FMLModContainer.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
   at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
   at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:212) ~[LoadController.class:?]
   at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:190) ~[LoadController.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
   at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
   at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119) ~[LoadController.class:?]
   at cpw.mods.fml.common.Loader.loadMods(Loader.java:513) ~[Loader.class:?]
   ... 5 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.entity.EntityClientPlayerMP
   at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_101]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_101]
   at mod.mcreator.mcreator_sakuraWood.(mcreator_sakuraWood.java:51) ~[mcreator_sakuraWood.class:?]
   at mod.mcreator.testenvironmentmod.(testenvironmentmod.java:44) ~[testenvironmentmod.class:?]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_101]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_101]
   at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_101]
   at cpw.mods.fml.common.ILanguageAdapter$JavaAdapter.getNewInstance(ILanguageAdapter.java:173) ~[ILanguageAdapter$JavaAdapter.class:?]
   at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:506) ~[FMLModContainer.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
   at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
   at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:212) ~[LoadController.class:?]
   at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:190) ~[LoadController.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
   at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
   at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119) ~[LoadController.class:?]
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
   at cpw.mods.fml.common.Loader.loadMods(Loader.java:513) ~[Loader.class:?]
   ... 5 more
Caused by: java.lang.RuntimeException: Attempted to load class net/minecraft/client/entity/EntityClientPlayerMP for invalid side SERVER
   at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50) ~[forgeBin-1.7.10-10.13.4.1558-1.7.10.jar:?]
   at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) ~[launchwrapper-1.12.jar:?]
   at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ~[launchwrapper-1.12.jar:?]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_101]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_101]
   at mod.mcreator.mcreator_sakuraWood.(mcreator_sakuraWood.java:51) ~[mcreator_sakuraWood.class:?]
   at mod.mcreator.testenvironmentmod.(testenvironmentmod.java:44) ~[testenvironmentmod.class:?]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_101]
   at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_101]
   at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_101]
   at cpw.mods.fml.common.ILanguageAdapter$JavaAdapter.getNewInstance(ILanguageAdapter.java:173) ~[ILanguageAdapter$JavaAdapter.class:?]
   at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:506) ~[FMLModContainer.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
   at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
   at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:212) ~[LoadController.class:?]
   at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:190) ~[LoadController.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
   at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
   at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
   at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119) ~[LoadController.class:?]
   at cpw.mods.fml.common.Loader.loadMods(Loader.java:513) ~[Loader.class:?]
   ... 5 more
[23:46:08] [Server thread/ERROR]: This crash report has been saved to: C:\Pylo\MCreator173\forge\eclipse\.\crash-reports\crash-2019-03-30_23.46.08-server.txt
[23:46:08] [Server thread/WARN]: Can't revert to frozen GameData state without freezing first.
[23:46:08] [Server thread/INFO]: Applying holder lookups
[23:46:08] [Server thread/INFO]: Holder lookups applied
[23:46:08] [Server thread/INFO]: The state engine was in incorrect state ERRORED and forced into state SERVER_STOPPED. Errors may have been discarded.
[23:46:08] [Server thread/INFO]: The state engine was in incorrect state ERRORED and forced into state AVAILABLE. Errors may have been discarded.
BUILD SUCCESSFUL

i am sorry for the lengthy post i do not know how to shorten hardly log in to website any help would be great as i dont ever understand server text.