I'm having no problem with either my site or cPanel on Absolut. If clearing your browser cache and history doesn't fix the problem (there may have been a glitch earlier, and the error pages are notoriously sticky), then you'll need to open a support ticket since it seems to be directly related to your own account.
EDITED: sorry, it looks like I missed a memo along the way. (We've known the support system was changing for a while now, I just didn't know when this version was going live.) If you are still experiencing problems after clearing your cache and history, please respond in this thread.