Forge Mods

I set up an arclight server with some mods and plugins and it kept crashing, i tried to remove radium but the same errors appeared. Crash log: https://mclo.gs/jO7K1Iz

Of the newer versions I have tested, 1.21.5 does work perfectly fine, but the only others I have tried, being 1.12.2 and now 1.16.5 with the mods you suggested showing the same results of crashing with exit code 6.

Several client crashes tied to goblin_goo: "Unable to load item model 'goblinmod:item/goblin_goo'". "Referenced from: goblinmod:item/goblin_goo#inventory". Verified correct file paths (.json and .png), with underscore usage consistent across files. Files appeared valid, and paths aligned with expectations.   FMLJavaModLoadingContext.get() marked for removal, triggering a warning. Not currently fatal, but might become an issue in future Forge versions. https://www.mediafire.com/folder/4uh6ytqre4az2/Goblinmod full project files linked

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

so i have a modpack on forge version 1.20.1 and it crashes when i go to single player can somebody help