2023-10-23 11:49:01.15893612.0MbinfoCronjob execution started. PID: 160672
2023-10-23 11:49:01.16491112.0MbinfoThere are 7862 records in the RD queue.
2023-10-23 11:49:01.18038312.0MbcriticalCronjob execution stopped prematurely. Exception:The `initial currency` parameter of App\CurrencyExchange\Rates::convert is not valid (eer)
2023-10-23 11:49:01.19199212.0MbinfoCronjob execution ended.

A transaction has been started but never closed

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