I am getting a Do Not Disturb window popup on my Asus Zenfone Max, it is selecting DND mode by itself How can I fix this?

[AC Question]

am getting Do not Disturb window popup in Asus zenfone max, it is selecting DND mode by itself

When I saw in Zenfone forum, they just described about the three modes and have no answer on "How to stop" the window pop-up and am clueless why this window pop-up appears and select the mode by itself
how to resolve?

 

[FrancisBenedict]

use volume rocker, volume will pop up then disable Do Not Disturb