First off: I’m a noob to phpList. But it seems I’m fighting unknown forces. I installed/reinstalled multiple times because I kept getting “security certificate” errors after making one update or adding one subscriber. But then if I’d wait a few hours - or a day - suddenly things seemed to work again. Now I’m having similar issues with plugins. I added the SubscribersPlugin, but then couldn’t enable it. Found out that CommonPlugin wasn’t enabled, so I attempted to enable it - but the UI would just return immediately to the Plugins page and still show CommonPlugin not enabled. So now I waited a day, and suddenly the interface shows the it is enabled. But now when I try to enable SubscribersPlugin, the same behaviour occurs: UI refreshes page immediately (with no confirmation or denial message), and the plugin still shows “disabled”.
I have done a bunch of searching, and saw a few threads where people indicated some server caching might lead to this type of behaviour. Any thoughts on this, or ideas of what to look for in server-side caching (if that indeed might be the issue)?