My Mod can't be tested

When I want to test my mod, it isn't be applicated in minecraft. Everything is good, but nothing from my mod isn't in the game. Maybe problem is that, i have a formated computer some time ago and i didn't downloaded something? Need help

Executing gradle command: runClient
Build info: MCreator 1.9.1, 64-bit, 8156 MB, Windows 10 - cmd, JVM 1.8.0_222, JAVA_HOME: C:\Program Files\Pylo\MCreator\jdk
(c) 2019 Microsoft Corporation. Wszelkie prawa zastrzeľone.
Xms625m -Xmx2048m" runClient 
This mapping 'snapshot_20171003' was designed for MC 1.12! Use at your own peril.
:deobfCompileDummyTask
:deobfProvidedDummyTask
:getVersionJson
:extractUserdev UP-TO-DATE
:downloadClient SKIPPED
:downloadServer SKIPPED
:splitServerJar SKIPPED
:mergeJars SKIPPED
:applyBinaryPatches SKIPPED
:extractDependencyATs SKIPPED
:extractMcpData SKIPPED
:extractMcpMappings SKIPPED
:genSrgs SKIPPED
:deobfMcMCP SKIPPED
:sourceApiJava UP-TO-DATE
:compileApiJava NO-SOURCE
:processApiResources NO-SOURCE
:apiClasses UP-TO-DATE
:sourceMainJava UP-TO-DATE
:compileJava NO-SOURCE
:processResources NO-SOURCE
:classes UP-TO-DATE
:jar UP-TO-DATE
:extractNatives SKIPPED
:getAssetIndex UP-TO-DATE
:getAssets
Current status: 1095/1305   83%
:makeStart
:runClient
20:34.18 [main/INFO]: Extra: []
20:34.18 [main/INFO]: Running with arguments: [--userProperties, {}, --assetsDir, C:/Users/lloyd/.mcreator/gradle/caches/minecraft/assets, --assetIndex, 1.12, --accessToken{REDACTED}, --version, 1.12.2, --tweakClass, net.minecraftforge.fml.common.launcher.FMLTweaker, --tweakClass, net.minecraftforge.gradle.tweakers.CoremodTweaker]
20:34.18 [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
20:34.18 [main/INFO]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
20:34.18 [main/INFO]: Loading tweak class name net.minecraftforge.gradle.tweakers.CoremodTweaker
20:34.18 [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
20:34.18 [main/INFO]: Forge Mod Loader version 14.23.5.2768 for Minecraft 1.12.2 loading
20:34.18 [main/INFO]: Java is OpenJDK 64-Bit Server VM, version 1.8.0_222, running on Windows 10:amd64:10.0, installed at C:\Program Files\Pylo\MCreator\jdk\jre
20:34.18 [main/ERROR]: Apache Maven library folder was not in the format expected. Using default libraries directory.
20:34.18 [main/ERROR]: Full: C:\Users\lloyd\.mcreator\gradle\caches\modules-2\files-2.1\org.apache.maven\maven-artifact\3.5.3\7dc72b6d6d8a6dced3d294ed54c2cc3515ade9f4\maven-artifact-3.5.3.jar
20:34.18 [main/ERROR]: Trimmed: c:/users/lloyd/.mcreator/gradle/caches/modules-2/files-2.1/org.apache.maven/maven-artifact/3.5.3/
20:34.19 [main/INFO]: Managed to load a deobfuscated Minecraft name- we are in a deobfuscated environment. Skipping runtime deobfuscation
20:34.19 [main/INFO]: Detected deobfuscated environment, loading log configs for colored console logs.
2019-11-16 20:34:19,240 main ERROR Error processing element LoggerNamePatternSelector ([PatternLayout: null]): CLASS_NOT_FOUND
2019-11-16 20:34:19,242 main ERROR Error processing element TerminalConsole ([Appenders: null]): CLASS_NOT_FOUND
2019-11-16 20:34:19,242 main ERROR Error processing element LoggerNamePatternSelector ([PatternLayout: null]): CLASS_NOT_FOUND
2019-11-16 20:34:19,264 main ERROR Unable to locate appender "Console" for logger config "root"
2019-11-16 20:34:19,759 main ERROR Error processing element LoggerNamePatternSelector ([PatternLayout: null]): CLASS_NOT_FOUND
2019-11-16 20:34:19,759 main ERROR Error processing element TerminalConsole ([Appenders: null]): CLASS_NOT_FOUND
2019-11-16 20:34:19,760 main ERROR Error processing element LoggerNamePatternSelector ([PatternLayout: null]): CLASS_NOT_FOUND
2019-11-16 20:34:19,765 main ERROR Unable to locate appender "Console" for logger config "root"
BUILD SUCCESSFUL in 3m 42s