The url option max_texture_size is broken at the moment, it should be fixed soon!
max_texture_size=2048 should work fine after that.
Until then, you can try with pixel_budget=2048 (since there is only 1 texture it will work the same as max_texture_size).
Note that these options are for development mostly, we don't provide official support/maintenance on them.
However, the model did crash on my android too, so maybe we'll have to adjust the budget on mobile too. The polycount doesn't help either.