Gallery crashes site with updates

For about four months now, my site will crash whenever I go to add or edit a page or post. I then receive an email alert from WordPress saying FlaGallery has had an error. If I deactivate it, I can add/edit posts and pages without any problem. When finished with edits, I can then reactivate the plugin and everything works fine, until editing again.

Everything has been updated to the latest version multiple times since the problem started. I noticed it first when my hosting provider upgraded to PHP 8.1 and no longer supports 7.4 or lower.

Is their a way to solve this without having to deactivate/activate with every edit? I frequently forget to reactivate the plugin and will have a site with fewer pictures. Thanks for any help.

The page I need help with: [log in to see the link]