2023-10-11 21:19:01.16501912.0MbinfoCronjob execution started. PID: 116595
2023-10-11 21:19:01.16948312.0MbinfoThere are 7862 records in the RD queue.
2023-10-11 21:19:01.18482212.0MbcriticalCronjob execution stopped prematurely. Exception:The `initial currency` parameter of App\CurrencyExchange\Rates::convert is not valid (eer)
2023-10-11 21:19:01.19554812.0MbinfoCronjob execution ended.

A transaction has been started but never closed

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