Problem with build mod.

Hi all, sorry for English,it's becuase I am from Russia. I have a problem. MCreator (2020.2) won't build my mod.

My output:

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\block\BlockRubyOre.java:3: error:  expected package net.mcreator.null.block;

                     ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\block\BlockRubyOre.java:3: error: class, interface, or enum expected package net.mcreator.null.block;

                         ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\block\BlockRubyOre.java:3: error: class, interface, or enum expected package net.mcreator.null.block;

                          ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\ClientProxyNull.java:1: error:  expected package net.mcreator.null;

                     ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\creativetab\TabNil.java:2: error:  expected package net.mcreator.null.creativetab;

                     ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\creativetab\TabNil.java:2: error: class, interface, or enum expected package net.mcreator.null.creativetab;

                         ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\creativetab\TabNil.java:2: error: class, interface, or enum expected package net.mcreator.null.creativetab;

                          ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\ElementsNull.java:8: error:  expected package net.mcreator.null;

                     ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\IProxyNull.java:5: error: class, interface, or enum expected import net.minecraftforge.fml.common.event.FMLInitializationEvent;package net.mcreator.null;

                                                                  ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\item\crafting\RecipeRubyplavka.java:2: error:  expected package net.mcreator.null.item.crafting;

                     ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\item\crafting\RecipeRubyplavka.java:2: error: class, interface, or enum expected package net.mcreator.null.item.crafting;

                         ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\item\crafting\RecipeRubyplavka.java:2: error: class, interface, or enum expected package net.mcreator.null.item.crafting;

                          ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\item\ItemRuby.java:2: error:  expected package net.mcreator.null.item;

                     ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\item\ItemRuby.java:2: error: class, interface, or enum expected package net.mcreator.null.item;

                         ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\item\ItemRuby.java:2: error: class, interface, or enum expected package net.mcreator.null.item;

                          ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\item\ItemRubyArmor.java:2: error:  expected package net.mcreator.null.item;

                     ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\item\ItemRubyArmor.java:2: error: class, interface, or enum expected package net.mcreator.null.item;

                         ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\item\ItemRubyArmor.java:2: error: class, interface, or enum expected package net.mcreator.null.item;

                          ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\Null.java:19: error:  expected package net.mcreator.null;

                     ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\NullVariables.java:1: error:  expected package net.mcreator.null;

                     ^

C:\Users\a0k0\MCreatorWorkspaces\null\build\sources\main\java\net\mcreator\null\ServerProxyNull.java:1: error:  expected package net.mcreator.null;

  ^