2023-10-27 21:15:01.15886512.0MbinfoCronjob execution started. PID: 495958
2023-10-27 21:15:01.16307912.0MbinfoThere are 7862 records in the RD queue.
2023-10-27 21:15:01.17735612.0MbcriticalCronjob execution stopped prematurely. Exception:The `initial currency` parameter of App\CurrencyExchange\Rates::convert is not valid (eer)
2023-10-27 21:15:01.18791112.0MbinfoCronjob execution ended.

A transaction has been started but never closed

Most likely another error was already logged in the server logs.