BF 7.1.2.2.
Yesterday I copied a project and then edited the copy and was deleting a few steps.
At one delete BF "thought" quite a while and  then came back with
Error
Missing expected character "[" at byte 0 - found ""
Copyright International Business Machines Corporation 2003, 2006. All rights reserved

Now whenever I click on that project I get this. I just copied the original project again and worked with the new project and when I deleted steps I made sure I waited a few seconds after a delete was done before doing the next delete.
So nothing is really broken except that we have this not working project.
Does anybody have any ideas about the options how this could be fixed?
If it is (complicated) "DB surgery" I think we'll prefer to just let it be.
If it is something easy without risk, I'd rather clean it up.