Cannot edit handouts or characters

Yesterday everything was working fine. Today I cannot edit existing handouts or character sheets. When I click edit nothing happens in the case of handouts. In the case of characters, the character simply closes as if I'd hit the X.

Hello Aelanna, Please carefully work through to the first three steps of our guide to Solving Technical Issues : Step 1: Make sure to use the right browser  Please check if these issues persist when using both Chrome and Firefox. Step 2: Ensure that there are no addons/extensions interfering with Roll20.  Please disable all add-ons/extensions. Step 3: Clear your cache. If none of the above succeeds, please thoroughly work through Step 4 . (Don't forget the complete Console Log!) Thank you!

I don't use Chrome at all, I use Firefox exclusively. I have no addons or extensions I didn't have yesterday. Everything was working fine as late as this morning, then just suddenly acted up in the early evening when I posted this. I logged off Roll20 and did other things for a few hours. When I logged back in everything was working again.

Yes, everything was working when I posted, and this morning. I just got home from work, I'll be logging in this evening to do some more work.