Plugins/Widgets Not Updating/Loading

When I try to add/delete/edit a widget, it just loads forever and never finishes.

Same with a couple of plugin updates – I click update and they just say “updating” forever.

I installed a plugin to submit a support ticket and it’s not working either – just says it’s submitting the ticket forever lol.

Everything was working fine until about a week ago. The only thing I can think I changed was that I updated WordPress. I tried reinstalling the update in case there were problems with the install, but it didn’t help.

I’ve also tried logging in on three different computers. No difference.