Can't run the installer.

REI not yet fully initialized!  Step 6/6 (100%) PluginStageWatcher 1 My friend tried to go to single player and it doesnt work We didnt add anything to FTB StoneCraft 3 and after redownloading it still kept the same problem

So the world dosen't even show on my world's list, it's totally broken, right?

Hey guys, I have following error for like three hours when joining my friends GPORTAL-Server: Connection Lost Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: index: 9, lenght: 955 (expected: range(0, 30))   So could anybody help me out with this one? Log: Minecraft Log PS: I already updated Java, reinstalled the Modpack, restarted my PC, updated my Browser [...]

Seemingly fixed, I had to delete the advancements json file for every player in the server as this seemed to be the error. After deleting the files and reloading the server, we were able to join back in.

Incompatible mods found! net.fabricmc.loader.impl.FormattedException: Some of your mods are incompatible with the game or each other! A potential solution has been determined, this may resolve your problem:      - Replace mod 'Moonlight Lib' (moonlight) 1.21-2.16.0 with version 1.21-2.17.0 or later. More details:      - Mod 'Supplementaries' (supplementaries) 1.21-3.0.14-alpha requires version 1.21-2.17.0 or later of mod 'Moonlight Lib' (moonlight), but only the wrong version is present: 1.21-2.16.0!     at net.fabricmc.loader.impl.FormattedException.ofLocalized(FormattedException.java:51)     at net.fabricmc.loader.impl.FabricLoaderImpl.load(FabricLoaderImpl.java:196)     at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:146)     at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:68)     at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) this si my error code, and yes i have the latest version of moonlight lib