when I run appin quest, guardian wall paper appear and screen turn black

hi, 
i have package a project from ue 4 for quest. side load the project in quest . found the app in unknown source. but when i run the app, long time three dots appear like  loading the app . after that the guardian wall appear and screen turn black.. last tow day i am trying to solve this  .. but no luck.. very frustrating.. any help..