Educate cashiers on which specific actions (like large voids) trigger supervisor locks so they do not accidentally freeze the machine mid-transaction.
| Cause Category | Specific Issue | |----------------|----------------| | | Firewall blocking TLS/SSL ports (default 7010, 7011) between key readers and supervisor server. | | Supervisor Service State | OptimaKeySupervisor service stopped or crashed. | | Database Corruption | Supervisor database containing key metadata is corrupted or locked. | | Clock Skew | System time difference > 5 minutes between key readers and supervisor (breaks time-based tokens). | | Certificate/Encryption | Expired or mismatched root certificate for key authentication. | | Firmware Mismatch | Key firmware version not supported by current supervisor version. | optima key supervisor error
If you find corruption, restore a backup copy of the configuration file or regenerate it using the software’s setup wizard. Educate cashiers on which specific actions (like large
The physical internal cryptographic chip or USB security dongle has shifted or lost contact with the motherboard. | | Database Corruption | Supervisor database containing