can't edit view => " [ServletException in:/jsp/edit/view/viewedit.jsp] null' "

can't edit view => " [ServletException in:/jsp/edit/view/viewedit.jsp] null' "

Hello.
I have a problem with my app "CRM" in Creator.

I can't edit view "NormSCommonOpenCalls",
in new opened window appears message:
" [ServletException in:/jsp/edit/view/viewedit.jsp] null' "

When i insert this view in HTML-page
in opened window appears message:
"We are unable to fetch this data, sorry!
Please note that your data is SAFE.Report this problem to support@zohocreator.com "

Than i create view with name "NormS_CommonOpenCalls".
I can't edit this too.
Deleting not available.

Please, help me to solve this problem.