Error 0x8802D009

Value: -2013081591 | 0x8802D009 | 2281885705

What does it mean ?

E_SYNCENGINE_UNSUPPORTED_REPARSE_POINT  
Files can't be uploaded because there's an unsupported reparse point.
Value: 53257 | 0xD009 | 0b1101000000001001

Where does it come from ?

FACILITY_SYNCENGINE  
Synchronization Engine
Value: 2050 | 0x802 | 0b100000000010

Other Errors for FACILITY_SYNCENGINE