apple id not active
i created another user id and placed on my iphone (a stupid idea). when i try to login it says apple id not active. I tried to revert to the old id doing a reset now it says iphone locked to owner, the new id, i cant use as its incorrect sign on and online it says not active. How can i revert my iphone 8 back to its original owner (my original id shows this as one of my devices)