Hi,
Thank you for your feedback. We highly appreciate it.
We verified the problem and fixed it. The fix will be available in the next update of the control. For the moment as a workaround we can suggest setting
<compilation debug = "false">
in the web.config file in order to avoid seeing the error message.
Do not hesitate to contact us again if you have other questions.
Best wishes,
Sophy
the Telerik team