2023-11-01 18:30:01.16295412.0MbinfoCronjob execution started. PID: 1139493
2023-11-01 18:30:01.19029512.0MbinfoMoved 6 transactions from fast queue to main queue: ClientInvoice #2870000012, ClientInvoice #2870000013, ClientInvoice #2870000014, Customer #156727, Order #2870000010, Service #2870000010
2023-11-01 18:30:01.19177012.0MbinfoThere are 7868 records in the RD queue.
2023-11-01 18:30:01.41735118.0MbcriticalCronjob execution stopped prematurely. Exception:The `initial currency` parameter of App\CurrencyExchange\Rates::convert is not valid (eer)
2023-11-01 18:30:01.43092818.0MbinfoCronjob execution ended.

A transaction has been started but never closed

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