Error 0x80042520

Value: -2147212000 | 0x80042520 | 2147755296

What does it mean ?

VDS_E_PACK_ONLINE  
This operation is not allowed on online packs. The pack must be offline.
Value: 9504 | 0x2520 | 0b0010010100100000

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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