Hey angelmartiin !
Thanks for reaching out to us.
We would need to know more info in order to be able to support you
-Which app does not recognize it?
-When you enable the ABP in Safari, you go back to the ABP app and it tells you that you should re-enable it? Some steps to what you are doing would be really helpful here.
-When you say ABP worked fine in your mobile, do you mean it stopped working after some time with the exact same Iphone 5S? Or did you upgrade the iOS version or something else?
Looking forward to your reply.