Customizer Corruption

SUGGESTED

A client asked me to create User Defined fields and add them to their AR Customer Maintenance screen.  When I accessed the DMAIN panel this is what I see.  I stopped immediately because this looks like corruption to me.  I have never seen anything like this before.  I beleive this happened back in December.  Their internal IT tech was adding fields to the screen and reported that he made a mistake and "restored from a backup".  I'm not sure what he restored, but this looks really messy to me.  Has anyone else every had corruption with these panels and if so, how did you fix them?  Thanks!