TypeError: is not a function after Pavlovia finished

I have a similar problem. URL of experiment: https://run.pavlovia.org/hellenjingyuan/plw_development_04/html/?__pilotToken=6512bd43d9caa6e02c990b0a82652dca&__oauthToken=c82cee331f74a4e143dd61f501df51a300a46d5cf65d075ce792a5e5be7f0bf2 or Sign in · GitLab

When I pilot my experiment on Pavlovia, after the very last trial, the screen is stuck on this:
image

And the browser devel tools console shows these error messages:

I don’t think I used “m.push” or “this.plugins[t].destroy” as variables in my experiment. So really not sure what is wrong… Any help would be greatly appreciated!