What does this error mean? (screenshot)

How do I...?
1

I was testing the performance of my desktop game (a real export of the game, so not a preview) on someone else’s computer, and about 30 minutes into the game the screen went black, and the below icon appeared in the topleft corner of the screen. I believe it is a Google Chrome error or something?

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I couldn’t control+shift+i so I cannot give you any error log.

Also, the game seemed to go on in the background, I was able to go to the pause menu and back, and keep playing, just the black screen prevented from seeing anything.

I have never experienced this type of crash, or any crash at all on my laptop, so I cannot replicate it. The test computer I used now is much better than mine. On my laptop I experience framedrops when a lot of objects (enemies) are cluttered together, however the test computer played everything smoothly - that is, except for the crash.

2

This happens when the WebGL context is lost, this means something went wrong with the graphics card or it’s driver. Maybe you tried to draw something too complex, e.g. a A lot of shapes with the shape painter or an insane amount of particles, or maybe your GPU driver needs an update.

3

Yes, I indeed read about the context_lost_webgl error.

I use particles, but the amount of particles are equal in the beginning as after an half hour, when the crash occured.
Im still playing and testing a bit with graphics, so hopefully this will not become a big issue.