Problem with datapacks

Hey,

So. I've recently reinstalled MCreator and upgraded to 1.18. And when I try to create a new (superflat) world, It says there's a problem with datapacks and that I can either go to the title screen or go to "safe mode". The safe mode button doesn't react, however. So I went to the datapacks part of creating new world and it says, that the default datapack and the forge datapack are made for an older version of minecraft. What do I do?

Thanks.