Iphone 6 has the wrong Apple ID for the App Store.

[iMore Question]

How do I change the Apple ID?

 

[Ledsteplin]

Welcome to iMore! Are you logged in to iCloud with your ID? Is it only iTunes? If so, go to settings > iTunes and App Store > Tap the ID at the top > sign out> then sign in with your ID.
If the iCloud ID is not yours, then you would need that ID and password to change it. Otherwise, there's nothing you can do.