I upgraded Adobe Connect 10.6 to 10.8, Not loading meetings the first time (resource does not exist)

I upgraded Adobe Connect 10.6 to 10.8. SSL did not install. Logged in, I see all the meeting rooms. I follow the link, an error page is issued: "The selected resource does not exist. For further assistance, please check out the Adobe Connect support page." OK. I close this page, and go the second time on this link, the meeting room opens normally with the desired layout. I close the meeting, exit and re-enter, click on the link and again the error first: The selected resource does not exist. For further assistance, please check out the Adobe Connect support page. "Ok. The second attempt opens normally. There is no cluster. Tell me what could be the problem and in which direction to go?