Unable to cancel Ring Central meeting in Outlook schdule with trial account

As the title states, I am unable to delete a Ring Central meeting scheuduled with my org's trial account and I'n getting a 3003 error.  I have a permanent account now and can create and delete Ring Central meetings created with that one, but I'm unable to modify or cancel a recurring meeting made with the old account. It simply cannot be removed from Outlook. Please help.