I upgraded to wpForo v1.8.2 today (from v1.7.7). I also updated from Polls v1.0.5 to v1.0.6. However, now I cannot add polls. I'm seeing the same screen as shown in a previous post, but I am seeing it in both FireFox and Edge.
I have tried deactivating/reactivating the Polls plugin, deleting all of the wpForo caches, clearing the website cache, uninstalling/deleting/reinstalling the Polls v1.0.6 plugin, and refreshing the main forum page (to account for any CSS updates). I've tried all of those steps in different orders. Nothing has worked.