Issues with Outlook meeting requests

I’m trying to learn to use eM Client with my gmail and work Outlook. I have had some meeting requests sent to me over work Outlook, and since the first time that happened, I am now getting this error every time I start eM Client:
MailExceptions.OperationException: The meeting request has already been sent and might not be updated.
Does anyone know how to fix this?

Hi Aashoo, what version of eM Client are you currently using?
Can you try to use the repair function? If you’re using an IMAP or AirSync account, can you please right click your calendar where the events you’ve been invited to are located and select Properties > Repair and click on the “Repair” button?

Let me know if that helped.

Thank you,