Hi Victoria,
well, at least I am not alone with my problem. Thanks for sending me the link.
There is however no solution there which I can fix by myself.
Thats mainly because I didnt make a backup before updating and I dont wanna mess it up entirely by trying to go back to an earlier version. So I will just sit this one out and wait for the fix and update by woocommerce.
Thank you and happy easter weekend!
Börries