Coralz

I have over 100 mods installed for 1.18.1 and every time I try to create a new world a message pops up saying," Errors in currently selected datapacks prevented world from loading. You can either try to load only with vanilla datapack ("safe mode") or go back to title screen and fix it manually." I've never played on any other version besides 1.12.2 so I'm very new to this, and have never seen this before. I've tried my best to fix it but no luck.