Emmanuel

Ok just install Wordfence Assistant plugin, choose “clean data base and files” and then install Wordfence plugin. And everything works again.
Hope that helps

Hello

The problem is mentioned in WPML support, a next update will fix that. In the meantime, we must go back to version 9.1
The support adds this:
Finally, it may be necessary to disable the Classic Editor extension or enable the “Use the Block editor by default and include optional links back to the Classic editor” option in Settings -> Writing.

I hope this can help those like me who have the same problem