[GNC] GnuCash 2.6.20 Report Problem

[Glenn Bordonada]

Any help would be appreciated.

I just installed ver. 2.6.20 over ver. 2.6.19 (which was automatically uninstalled).
When I run the reports Expense Barchart and Income Barchart, the program comes out with an error screen(see attached snapshot). The other reports work just fine as before. 
In my previous installation ver. 2.6.19 and in ver. 3.0 which I tried, the reports work without problems.
I have Windows 10.
Regards,Glenn 
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