I have to say Thanks to the user who wrote me a comment about the app "AR Anywhere" and told me about an error in the app, the button of look for 3dmodel disappear D=! , i have to say sorry about that, in my last testing i erased it by mistake, but im working in that to give it back.
What a shame, really!
If you have a problem with the app, please, dont give a bad rate, instead that send me a mail and I will see wthat can I do for you to solve it.
This is what I found when I was debugging