My access token has expired!

For the past month or so I have not been able to access my Lightroom CC application, it shows this Account notification, I've missed deadlines, lost Jobs because I could not deliver as promised on time, does anyone have a fix to this solution, I've been in contact with Adobe support several times over the phone and they have been no help at all. Any solution that is worth trying would be much appreciated.
operating system: Home PC, windows 10.
Sean.
