I've had my SilverStripe set up for a while now, and it's all worked perfectly - can't complain.
However, I've logged into today, and when I select an option from the left hand menu (Reports, Security etc.), it comes up with the 3 dots to say it's loading, and that's it. No new page, no error, no dots - just the screen I was on before.
Have anyone else had this issue, and if so, how did you fix it? At the moment, my site is unusable as I can't edit anything!