This error usually occurs because you might have forgot to WIPE when installing a NEW ROM. So to avoid that always wipe when the ROM provider has stated so.
There are also other causes which result this error. So try the following methods:
1. Try uninstalling Facebook if that is installed. If this does not fix your problem then try the following.
Do you have your contacts backed up?
2. Settings>Applications>System Applications>Contacts Sync Adapter and press Clear Data, this error usually goes away. If this doesn't work, try clearing the data on Settings>Applications>System Applications>Contacts or Settings>Applications>System Applications>Contacts Storage.
If problem is fixed, then restore contacts and reinstall Facebook and make sure you don't sync contacts with it.
3. Third and Final solution for me which I really dont like but has worked with me
Boot into Recovery than
1. WIPE DATA
2. WIPE CACHE PARTITION
3. MOUNTS & STORAGE > FORMAT SYSTEM
4.FLASH THE ROM