Acr drift syncing issue?

I was racing this car for his car, and beating him pretty bad, but before the race was finished he disconnected, and ever since I have had this syncing message on my screen and I am unable to play the app, I emailed crooz and they were not very helpful.. Has anyone else had this problem? Any ideas on how to fix it?

Muntasir2014-05-23T03:00:32Z

no, Its a regular thing.