All site plugins deactivating when accessing Plugins.

Hi

A couple of months ago I had an issue with a web site whereby when I’m in the dashboard and go to select plugins I get the screen below where all the plugins deactivate with the error “The plugin does not have a valid header” see Screenshot

I have been able to restore the site from backups.

At the time I deleted and restored all the plugins and everything seemed to be running OK but the same issue has now returned. I have also run database checks and repairs.

As long as I don’t attempt to access plugins all works fine, but obviously not practical going forward.

Any advice would be greatly appreciated.

Many thanks

Jim…