Cannot find function toString in object

[Fabian42]

The script failed 24 out of 24 times yesterday, with the following error:

TypeError: Cannot find function toString in object {year=2019, month=2, day-of-month=13, day-of-week=3, week-of-year=7, hour=21, minute=34, second=58, timezone=UTC, authMode=FULL, triggerUid=1232464547}. (line 17, file "Code")

A pointer what to do would be nice. I've checked the channels and playlists, they all exist. I would like to avoid debugging a program in a language that I don't know again. :D

[Fabian42]

I wanted to start debugging anyway and as a first step executed the script manually. It seems to have gone through successfully! Now I'll wait for the next hour and see if it resolved itself.