There is a problem suddenly with some of the backend features. Namely, in an exhibit, when I click the "upload" button, the window shades but no dialog menue pops up to upload images.
Also – in the admin panel when clicking "plugins", "assets", "settings" or "users", it oddly redirects me to the frontend index page.
I've tried different browsers (Chrome, Firefox, Safari, IE), different IPs, and cleaned my cache several times with no change. I also have replaced the javascript directory in "assets" with the downloaded backup version, thinking it could be a problem there.
The site is jlmurtaugh.com. Any help provided is greatly appreciated.