Does this look familiar to you?
The problem stems from the recent update to secure hosting, and users with externally hosted avatar images. Measures have been taken to ensure that nobody is affected by this issue going forward, but a number of people will no doubt be stuck in a situation that they cannot fix.
If you are one of the unlucky few users that has been affected by this, there is hope! Simply let us know in the comments section below, or notify either NineX, Supsuper or myself on IRC and we’ll get it sorted out for you.