Error 0x8004002D

Value: -2147221459 | 0x8004002D | 2147745837

What does it mean ?

TAPI_E_INVALBUTTONLAMPID  
Invalid button or lamp ID.
Value: 45 | 0x002D | 0b0000000000101101

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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