Business process error on the Microsoft Dynamics CRM server

Hi,
I am trying to debug plugin registered for online version and installed Plugin Pro-filer in the plugin registration Too. I registered the plugin and step on the Microsoft Dynamics CRM server. I performed the operation in CRM that causes the plug in to run but the plugin showed an exception and the Business Process Error dialogue displayed.

Business process error
Unexpected exception from plug-in (Execute): CrmOnlineErrorLogging.TestPlugins: System Exception: Error logging
