2023-10-13 04:19:01.15692314.0MbinfoCronjob execution started. PID: 121412
2023-10-13 04:19:01.16107114.0MbinfoThere are 7862 records in the RD queue.
2023-10-13 04:19:01.17697914.0MbcriticalCronjob execution stopped prematurely. Exception:The `initial currency` parameter of App\CurrencyExchange\Rates::convert is not valid (eer)
2023-10-13 04:19:01.18672914.0MbinfoCronjob execution ended.

A transaction has been started but never closed

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