I was making a test in Moodle when I got this notification:

I got the notificiation after I clicked the option "mix the questions".
I hadn't added any questions yet. I don't know if this makes any difference.

The notification says there is a mistake in the code and it needs to be repaired by a programmer.
The "firstslotid" value must be set in other.

Does anyone know what to do?

Thanks in advance!

Moodle SNT
(Justine Monballieu)