2023-11-17 06:30:01.15705612.0MbinfoCronjob execution started. PID: 3339217
2023-11-17 06:30:01.16108212.0MbinfoThere are 7862 records in the RD queue.
2023-11-17 06:30:01.17633714.0MbcriticalCronjob execution stopped prematurely. Exception:The `initial currency` parameter of App\CurrencyExchange\Rates::convert is not valid (eer)
2023-11-17 06:30:01.18623214.0MbinfoCronjob execution ended.

A transaction has been started but never closed

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