It looks to me like there's a tag open or tag missing somewhere. It's all generated with their code though, not HTML, so it's beyond what I can effectively speak to. Try contacting them directly, more than likely it's a problem they have encountered before and should be able to fix quickly.
"It hurts so good..."
Look to me as if you resumed files you uploaded on the FTP rather than overwriting. It appended text at the end of one of the file (after the PHP close tag)
Replace with your backup (Because you made a backup before you attempted to update, right?) and restart the upgrade process.
Yeah.Originally Posted by Velo Vol