Experiment crashes in the middle of running on pavlovia - shows white screen with sad face

I associate “lose context” with a WebGL memory error (like the sad face).

Your local error (which might possibly also encourage the online error) is that you have sound files being played at bitrates of both 44.1kHz and 48kHz. You should edit some of your files so they are all the same – or I might be able to share a pre-release version of PsychoPy 2025.1.0 with you that should fix this.