Problem when uploading project to Pavlovia

URL of experiment:
Description of the problem:
When running the study on Psychopy- everything goes fine. However, when trying to run it in Pavlovia- this error appears: Typeerror: failed to set an indexed property on ‘window’: indexed property setter is not supported


I’ve never seen this error before and I don’t understand its meaning. Does anyone know how can I fix it?
Thank you!

I think there might be an issue with your trials loop. Please could you show a screenshot? Specifically, I think that whatever you have in the conditions field is being interpreted as something else.