I tried since Last 8 hours on a It to Fix the Issue, But I don't know. Also I followed Docomentation.
I want to intsall my several Apps on a machine. Any assistance.
Try to /container/repull your container.
If there is no major reason move to 7.21.1
pihole is included in /App.
Select the package and click Enable and pihole brings to live smoothly. You don’t need to worry about mounts, envlist or any other container related settings. Great container manager implementation by Mikrotik.
/App is not showing me
7.20.x hasn’t App menu.
Are you on 7.21.x?
No i'm on 7.20.7.
Then you need to move to 7.21.1 to have /App
Noted 