NawradneZ

All of the Mods that I use I downloaded from 9minecraft, but I'll try to download them from CurseForge and see if it helps. For real-time translation, it was a mod that translates a text ingame, when you write something in Polish, for example, it translates it instantly into English. But I removed it now and it seems there are still some issues. The Log file: crash-2019-06-30_19.01.46-server.txt

Heyo! After some time I wanted to play MC with a Friend again, with a bunch of mods.. really a bunch. I set up the server but I got some errors, these being the frequent ones: Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.GuiScreen at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 39 more Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@10ec523c from coremod FMLCorePlugin at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:260) at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ... 41 more Caused by: java.lang.RuntimeException: Attempted to load class blk for invalid side SERVER at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:62) at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:256) ... 43 more I would really appreciate the help! crash-2019-06-30_18.19.27-server.txt 2019-06-30-7.log debug-5.log