Local Community

Editing Post with gutenberg

hi,
I have a problem with my local wordpress websites since the upadte of WP to 5.9.
I can’t edit posts. The website is online. When i try to edit posts or pages, there’s an unespected error.
I tried with differents themes. The posts and pages are possible to be modified by elementor, but it’s impossible with gutenberg.
Any idea ?
Thanks