MarlaoTop1

Just tried superflat, it creates the world fine, but i still get the same error when reentering the world.

Can't directly attach the save here, but here you go: https://www.mediafire.com/file/60a2faipxydjlr8/Save.zip/file if you'd like another way to transfer the file just let me know

I haven't touched the modpack since creating the world, and all the datapacks i have are the ones created by the mods, that's why i believe it is some mod with a faulty datapack.

Nop, we didn't remove any mod at all

It is one i made with my friend.

So, i'm playing a modded 1.16.5 minecraft lan server with a friend, and after some errors with world creating and datapacks we managed to play, after roughly one hour i restarted the game and couldn't join the world again. i got the "Erros in currently selected datapacks prevented the world from loading. You can either try to load it with only the vanilla data pack ("safe mode"), or go back to the title screen and fix it manually.". Of course the "safe mode" button does nothing. I've seen this error before while trying to create a world with the same modpack, but after some trial and error i found out it was Runesword causing the issue, and removed it before we started playing. I've seen this occur with some people while searching for it, and mostly it's due to some mod with broken datapacks, we're playing with 200+ mods so i already expect it maybe some compatibility error or a single mod causing the issue. Either way i can't figure it out. Mod List: Here's the debug and latest logs: Debug: https://gist.github.com/marlaoza/1a8edbba59f10924e8253e98c1505c63 Latest: https://gist.github.com/marlaoza/66a66424b936f0212f4fa720ec0c0650