You have a hard return in your character description, which gets translated to <BR> (this is the invalid HTML).
I consider this a bug, but until it's 'fixed', don't use hard returns in character descriptions.
"City of Heroes. April 27, 2004 - August 31, 2012. Obliterated not with a weapon of mass destruction, not by an all-powerful supervillain... but by a cold-hearted and cowardly corporate suck-up."
Thanks very much.
Fixed it 
I cannot save my custom contact after writing a short description of him in the CCC. This is what it says when I attempt to save:
Save Failed. Invalid character description. HTML tags were detected in character description.
Any help would be appreciated!