Add 6503 error for plugin error
@@ -521,6 +521,7 @@ The following standard Status Words are returned for all APDUs - some specific S
| *SW* | *Description*
| 6501 | TransactionType not supported
| 6502 | Output buffer too small for snprintf input
+| 6503 | Plugin error
| 6700 | Incorrect length
| 6982 | Security status not satisfied (Canceled by user)
| 6A80 | Invalid data
