I’d love to know if you got it to work as a Countup. I’m trying to do the same.
I’m experiencing the same issue. I’m trying to help my church install a new calendar. Their previous one stopped working and is no longer supported (that’s according to their network guy), so I tried to install this one their new one. Now, I cannot see my “Installed Plugins” page. I can see the “Add New” and “Editor” pages within “Plugins”.
I’m not sure what to edit or where to start? If there isn’t an obvious fix, how can I undo this?