My Apple ID is not active why ?

Did you recently buy this iPhone used? If so, the former owner may not have removed the activation lock. If this is the case, please contact the seller and ask them to remove the activation lock. They can find instructions here:

How to remove Activation Lock - Apple Support

For enhanced comprehension of the phenomenon, it would greatly benefit if you could kindly repost using a screenshot. Visual representations hold more impact than mere words.

Please bear in mind that this is a public forum, and when attaching a screenshot, refrain from including any personal credentials such as IP addresses, card details, email IDs, Apple IDs, IMEI numbers, serial numbers, phone numbers, order IDs, or any identifiable location information if you are sharing a map.

With the limited information that you have provided, It is hard to even guess the problems faced by you. 

You may get faster and better responses to your query by --> Writing an effective Apple Support Commun… - Apple ...

Please re-post with detail so that someone else can help.

Click here and ask the iTunes Store staff for assistance. Other people have posted screenshots of this issue, and they didn't provide any information or details on the cause.

(239814)

This is an Apple ID issue, not an activation lock one.

(239819)