InvalidParameterException

I'm seeing the following error when trying to view my members list. The error has something to do with the siteaccess plugin or at the least was caused by it.  Is there a way to recover from this? I tried the dbvalidate plugin but it doesn't see the problem.
Is there a more comprehensive database repair plugin or a general course of action to repair problems like this in the future?

InvalidParameterException

File profile/136small.jpg (file guid:0) (owner guid:136) is missing an owner!