im having the same problem, my phone is an OPPO A57
Once I open the app it starts with pink in the corner then after waiting the pink goes full screen and music starts 
Thats new... It might be simply too old a GPU to be compatible.
It's probably incompatibility with linear rendering and HDR.
Besides that based on GPU rankings it's in roughly the bottom 10. Sorry it simply might not be viable as a 3D game.
Smartphone GPU Ranking - Gaming Performance, Comparison List 2021 (techrankup.com)