Unable to Leave Team

I need to leave my current team in order to join a paid subscriber team instead. The problem is that I find myself unable to leave a team as I can no longer access the Dashboard. If I try to do so, it sends me back to the 'Trial Expired' screen (see attachment).. I tried going to 'My Account' and 'Team" but I am not allowed to remove my email address from the members' list as I am not an admin (see attachment).