Start AR Session Failed

Hello! I’m using unreal 4.20 AR Handheld, and at the beggining, when I started to test It, it worked fine when I compiled it to an apk to test it in a phone ) Which I already see that is compatible.

But few days ago, it stopped working, showing a black screen and saying “Start Ar session failed”
I have no idea what it could be, I need some help with this, I saw a very few posts talking about this issue, some of them saying that I need the Google AR plugin in unreal, but it’s already enabled.

Im testing in android.

Thanks a lot.