MT5 · Runtime errors
MT5 5123 · Database connection error | YI GOLD
ERR_DATABASE_CONNECT
Official meaning
Database connection error
Possible causes · YI GOLD suggestions
Network, server response or authorization connection is delayed or interrupted.
Troubleshooting · YI GOLD suggestions
Inspect connectivity, logs and request time. Verify actual order status before bounded retries with backoff to avoid duplicate exposure after a timeout.