The first time I asked about it I was told to delete a random PM in my inbox and it would go away. The first few times this happened I did that, and away went the phantom message.
...I was stuck with the last one for a couple of weeks. It's just a wonky Proboards glitch. Try deleting a message, and if that doesn't work then you'll have to wait it out sadly.
1x WFWF Champion 3x WFWF International Champion 4x WFWF Tag Team Champion (Current) 1x WFWF Vanguard Champion (Current) 1x WFWF National Champion 2014 Scars and Stripes Battle Royal Winner 2014 WFWF Hall of Famer 2016 Feud of the Year 2016 Match of the Year