Cant create/open a new world after updating MCreator

Hello, everybody!

Since a couple of months I am making a new mod with many different features like custom biomes, dimensions etc... I started the mod in the old MCreator version 2021.3 and everything worked fine with it. 

But than i switched to the new MCreator version 2022.1 in order to be able to play the mod in the new minecraft version 1.18. When i loaded the mod in the new version. everything seemed alright but ITS NOT!

I can not open or create a new custom word and I get the error message: "ERRORS IN CUERRENTLY SELECTED DATAPACKS PREVENTED THE WORLD FROM LOADING. YOU CAN EITHER TRY TO LOAD IT WITH ONLY THE VANILLA DATA ACK (SAFE MODE), OR GO BACK TO THE TITLE SCREEN AND FIX IT MANUALLY."

Nothing is working anymore. The safe mode button has no influence and i dont know what to do know. However. I found a similar forum topic about this issue: https://mcreator.net/forum/75898/found-bug-mcreator-20212-2nd-snapshot&…;

and i tried to follow the steps explained in this threat, but it hasnt worked too.

Can sb help me to RESCUE my mod, which i am working now for many hours?

Thank you in advance!