Did you ever wanted to export your ursina game for android? Now you can, with this repo.
Only Android is supported now. I don't think iOS will ever be supported, because Panda3D doesn't support building for iOS, and I don't have an iPhone/Mac to test.
To do that, follow the documentation. Everything will be here.
If you need help, if anything doesn't work, you can make an issue, or start a new discussion.
Your error can be ursina-related too, so go to the ursina engine discord, I'll be there too.
To do that, you can ameliorate this project by doing a pull requests, or if you find a bug by making an issue.
You can help too the main engine, by doing pull requests or issues in the ursina github.
Thanks for all the people that helped me in the project, that tested the project.