Third party apk installation error

[Manmay]

While i am trying to install third party apk in my airtel internet tv through fx file explorer it asks for permission from fx explorer at the time of installation and after allow the installation the system has no response and stock there and i couldn't install my package

 

[Vadirocks]

Its Android 7

It Won't Ask You Any Permission Bro!

Use ES File Explorer And Install

 

[The Lonelier Island]

Use ES File Explorer And Install

Banned app.

 

[Manmay]

Its Android 7

It Won't Ask You Any Permission Bro!

Use ES File Explorer And Install

It's banned