Santa Claus Game

URL of experiment: https://pavlovia.org/run/tripver/santa-claus-game/html/

Description of the problem:
Hello,
I am new to psychopy online experiments. I have been trying to run my experiment online but some or the other issues come up. Recently “Reference error: jitter not defined” is coming up as an error. I am not sure how to solve this problem. It would be nice if I can get some help regarding this.
Thank you

ReferenceError: variable_name is not defined
Set a value for variable_name in a Begin Experiment code block.

Best wishes,

Wakefield