So if I remove those references of Zen Colorbox from the data base will that fix the issue?

Quote Originally Posted by mc12345678 View Post
In software reinstallation of 2.0.1, if still referencing the same database, then there would not be a database upgrade option.

If then the same database was upgraded to 2.1.0, without a backup of the any of the previous versions then the database is at 2.1.0 even though now restoring back to software version 2.0.1.

As to IH, there are some additional observers that check for the database existence of color box. I would expect if those additional observers were not present, then the database extras if still present wouldn't have an impact on IH.

If you're getting a black page, there should be some sort of debug log generated that should then also help track down the issue... May have to look at your host settings to generated the log assuming it's not an error but instead a warning or less.