"ReferenceError:None is not defined" when running online

URL of experiment: OiTNB_3LoadExp [PsychoPy]

Description of the problem: Hi all, I’m trying to get my experiment to run online, however, after the first stimulus loads and I press the spacebar to advance I get an error message saying that “None is not defined.” Reviewing my code, I’m not sure what this is in reference to. Has anyone debugged this before?

Do you have a transparent polygon?