Error 0x80045366

Value: -2147200154 | 0x80045366 | 2147767142

What does it mean ?

FSRM_E_VOLUME_OFFLINE  
File Server Resource Manager failed to access the volume. It may be offline.
Value: 21350 | 0x5366 | 0b0101001101100110

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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