I was editing a bunch of pages and all of a sudden Page Manager stops working. Clicking on the page manager button shows a blank white page. I enabled debug mode in the config, but no error shows up. No logs are stored. I tried deleting both the sitecake-backup and sitecake-temp folders.
I cleared the cache and cookies on my browsers, still same problem. Tried it on other devices. I tried the Sitecake Demo, and page manager works on the demo for me.
I reinstalled sitecake, still same issue.
The only things I changed while modifying the site this morning were CSS and HTML. I don’t get how I could have broken the page manager.