ConceptStation crashes

I am using ConceptStation Connect Edition.  I had my road completed with no issues, but then we decided to change this one section that has ramps, bridges, etc. so I was deleting a lot of stuff.  Then I ran into a problem so I decided to "undo" all of my deletes. I think it went on overload cause it just crashed.  Now whenever I open this file and zoom into that area, as soon as I click onto one of the sections that had been undone, the entire program just crashes and closes.  I tried removing the journal file as well as moving and renaming to another location but same result.  I'm worried I am going to have to start all over which I do not want since this is 50 miles of a highway.  I would like to redo this entire area but I will need to delete the partially deleted items but now I can't select anything without it crashing.  See partially deleted picture attached.  Any help would be most appreciated!!!