Error 0x80100066

Value: -2146434970 | 0x80100066 | 2148532326

What does it mean ?

SCARD_W_UNRESPONSIVE_CARD  
The smart card is not responding to a reset.
Value: 102 | 0x0066 | 0b0000000001100110

Where does it come from ?

FACILITY_SCARD  
Smart-card subsystem
Value: 16 | 0x010 | 0b00010000

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