DaemonUmbra

Try Java 8 or 10

Update to 1.14.3 and Forge 37.0.57 and see if the issue persists.

in the logs folder

None of the versions you have listed are actively supported. Please update to a modern version of Minecraft to receive support.

This... THIS is how people should handle things rather than insisting that you should be allowed to conditionally register things. </rant>

User was banned for using a cracked launcher. buy the game.

User was banned for using a cracked launcher. buy the game.

The file names of some of your mods suggests you are not getting them from official sources, please read my signature below for more info on why this is a bad thing.

User was banned for using a cracked launcher. Buy the game.

I see OTGCore with no OTG, I really wish they would fix this. Look in your mods folder for a 1.12.2 folder, you should find OTGCore in there, delete it. OTG dumps OTGCore in there and thinks nothing of it, then when you delete OTG, OTGCore gets left behind expecting OTG to be there and when it's not you get this crash.

Are you even running Forge? This is not Optifine's website.

Read the installation instructions for your mods, you're missing a mod that one of your mods requires.

Most likely you have an outdated version of Java 8, update. https://adoptopenjdk.net

I think so. I think Java 11 compat would require updating a library that would have to be updated across the whole toolchain which will be a bit of a task to coordinate and test.

1.8.9 is no longer supported on this forum due to its age. Please update to a modern version of Minecraft to receive support. (That screen should be telling you everything you need to know)

Oh wait... why do you have Optifine on your server? Structurize crashes when it attempts to activate Optifine compatibility... I'm guessing when they see Optifine they assume they MUST be on the client, and try to access client-only code which does not exist on a server.

Use one of the paste sites listed in my signature

debug.log Also I suggest you click View and turn on file extensions (as the debug.log is showing as just debug)

Sounds like another mod is shipping it, can you provide the log?

Your code is FULL of antipatterns and discouraged practices, again I suggest you start over.

Please do not hijack threads, if you have an issue please make your own.

Looks like Structurize is broken for servers.

Please do not hijack threads, if you have an issue please make your own. Please provide your installer log, it will have the same name as the installer but with .log on the end: Installer: forge-{version}-installer.jar Log: forge-{version}-installer.jar.log Note: If you have Windows Explorer set to hide file extensions(as is the default setting), they will look like this: Installer: forge-{version}-installer Log: forge-{version}-installer.jar

Try Java 8 or 10

Please provide your installer log, it will have the same name as the installer but with .log on the end: Installer: forge-{version}-installer.jar Log: forge-{version}-installer.jar.log Note: If you have Windows Explorer set to hide file extensions(as is the default setting), they will look like this: Installer: forge-{version}-installer Log: forge-{version}-installer.jar