Scheduled Transaction Group did not executed

Hello.

I would like your help in an issue I experienced some days ago. I have a perspective application I use for data collection and report generation. I have some Scheduled Transactions configured for being executed during one minute every 15 seconds, it executes a SP in an SQL DB for logging some data in a table. It has been working fine for the last 6 months but today suddenly it did not execute and there is no data in DB.
Is there any Log for Transaction Groups or what could cause a Transaction for not being executed if its scheduled?

Attach Transaction Config and SP from DB.

Hope you can help figure out.

Thanks

Did either the gateway or DB reboot during your execution timeframe? (Look at your gateway logs.)