I have a wordpress single site install. Everything was working fine since I built the site 2 months ago.
Suddenly the plugins page does not show.
I see the plugins and can go to the settings of some of them and I can open the plugins editor for plugins code file.
The only last thing I adjusted on my site was installed Scheme plugin and deactivated Accelerated Mobile Page plugin and kept the AMP plugin.
Please help me if you can.