The game crashed whilst initializing game Error: java.lang.NoClassDefFoundError: cer

Posted July 31, 20205 yr

Tell me why this error come.

July 31, 20205 yr

My version is 1.10.2

I tried to play ars magica mod.

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java.util.ConcurrentModificationException: null - Exception in server tick loop

Use Java 17 instead of Java 21

By TileEntity · 6 hours ago6 hr
Internal Exception help

Add the crash-report or latest.log (logs-folder) with sites like https://mclo.gs/ and paste the link to it here

By TileEntity · 6 hours ago6 hr
java.util.ConcurrentModificationException: null - Exception in server tick loop

Hi! It's been days that sometimes, when I connect, not everytime, my server crash a few minutes after. I don't understand why and it's getting frustrating.

Here is the full crash report :
https://pastebin.com/QbSvWEiZ

By Aisu · Posted 8 hours ago8 hr
Internal Exception help

Every time I try to run a single-player game in a modpack I made, I get an "Internal Exception: io.netty.handler.codec.EncoderException: java.io.UTFDataFormatException: malformed input around byte 129" Is someone able to help me?

By flameofdeath303 · Posted 9 hours ago9 hr
Can't boot server

These are the Minecraft Forge forums, you should probably ask for Fabric support wherever they give Fabric support for best results.

(https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/ very first item listed there)

By Ugdhar · 12 hours ago12 hr

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