Hi , has any one experienced this in Thunderbird 45.30
I was in my in box and I went to delete a message and it said that this action could not be completed because the box did not exist or something like that.
so I closed Thunderbird and restarted it and it worked fine . I will have to copy the message the next time it happens. For answers to frequently asked questions about this list visit: http://www.jaws-users.com/help/