Answers are not saved and TypeError: Cannot read properties of undefined (reading “getLastResetTime”)

URL of experiment: Ma_Experiment_2 [PsychoPy]

Description of the problem:


I am running an experiment on, but a few problems have arisen:

  1. The answers of some participants are not saved. When I download the results and open the file, the file is empty, as if nobody had done the experiment.
    In some cases, I assume that two participants are running the experiment at the same time and, hence, the answers are not saved. Does it make sense?

  2. A participant reported the following error after running the whole experiment: “Unfortunately, we encountered the following error: TypeError: Cannot read properties of undefined (reading “getLastResetTime”). Try to run the experiment again. If the error persists, contact the experiment designer.” I tried to run the experiment myself, and I didn’t get the error message and my answers were saved properly. Nonetheless, I am concern that it may happen again to another participant.

Can anyone help me to solve these problems?

Thank you in advance!