Prevent pop-up to csv download after experiment online on Pavlovia

URL of experiment: Pavlovia

I am piloting an experiment on Pavlovia. Every time I end it, I get the opportunity to save my data (see the photo below). How can I prevent this behavior, so that my participants wouldn’t see it?

This might be related: When I try to download the whole data from Pavlovia, I get the following error:

I use PsychoPy Builder v3.2.3 with some code components.

I am grateful for any hint!

This is what happens when PILOTING. When RUNNING the data are saved automatically not manually.