Hi @GOMIT ,
Welcome to the Community!
That error often indicates that the current login session has expired or is no longer valid. You can try these steps to fix:
We have problems with the GoToMeeting and OpenVoice Outlook addins crashing or slowing down Outlook so that Outlook disables them. We have to frequently re-enable the addins. Will the addins be updated anytime soon to work better with Outlook?
@JasJet What's the error message? Which Outlook version are you working with, on what operating system?
@Sue3 I'm not aware of any known issues with the OpenVoice plugin at this time, or new development upon it. Have you been able to create a case with Customer care to fully document the environment where these failures occur?