Oculus Go App Submission APK Upload

Hi, I have previously submitted an app to the store successfully, and had it approved for keys only which satisfies my purpose at the moment. I have another version of the app which I am trying to also submit for keys only approval, it is an alternative language of the app. 

I have been attempting to upload the APK file in the same method (OVR Utility) as previously used in order to submit this new app for review. Though it has been failing to upload and I am having trouble resolving the reason. I need urgent assistance please.

Regards
Youssef Bouz