Reply To: Half day not available, then plugin crashed

Pretty weird, still at experimenting. It isn’t a wordpress multisite network, is it?

Edit: Okay, it seems to be a network. I’ve no experience with them so I don’t really know how the plugin activation works there. But your problem seems to be the normal logic of it:

“Did you network activate them? That’s not what you think it was. That’s turning them ON for all your sites.

If you want to see the plugins on the per-site plugins page, go to /wp-admin/network/settings.php and scroll down to Menu Settings. Check the box to Enable administration menus”.

You’ll need the network-/super-admin account for that.
Regards