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Quote

[17:30:00] [Server thread/ERROR]: Encountered an unexpected exception

java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 33

at it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet.removeFirstLong(LongLinkedOpenHashSet.java:601) ~[fastutil-8.5.6.jar%2341!/:?]

at net.minecraft.world.level.lighting.DynamicGraphMinFixedPoint.m_75588_(DynamicGraphMinFixedPoint.java:195) ~[client-1.18.2-20220404.173914-srg.jar%23436!/:?]

From the error it looks like one of your mods has broken Minecraft's lighting engine?

The only thing in the log (such as it is, since you don't show the full debug log) that mentions a mod is that the error happened while ftb backups was creating a backup. It got a similar error.

Quote

[17:30:00] [ftbbackups2_Worker-1/ERROR]: Job DEFAULT.ftbbackups2 threw an unhandled Exception:

java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 65

at it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet.rehash(LongLinkedOpenHashSet.java:1253) ~[fastutil-8.5.6.jar%2341!/:?]

 

You should add mods one-by-one instead of adding large groups of mods. And test each one.

That way you will know which mod is causing a problem.

Edited by warjort

Boilerplate:

If you don't post your logs/debug.log we can't help you. For curseforge you need to enable the forge debug.log in its minecraft settings. You should also post your crash report if you have one.

If there is no error in the log file and you don't have a crash report then post the launcher_log.txt from the minecraft folder. Again for curseforge this will be in your curseforge/minecraft/Install

Large files should be posted to a file sharing site like https://gist.github.com  You should also read the support forum sticky post.

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