Scheduled script stops running

[Amund Stigen Fjeld]

Hi

I made a scheduled scripts a couple of months back. Two times have it stopped to run for severals days. 

It start's to run again when I enter the script and set time to run again. 

I guess something get's wrong for the next time to run and that it then stops. Anyone that have experienced this and have looked into it? 

I have reported it to Vasya too, but if someone here knows what it can be / how to error search this I don't need to use his time 🙂

Thank you in advance.

 - Amund