Unresponsive Space in the center of the screen

There's a invisible part of my iPad that is not responding to touch. It's a line that goes right down the middle of the screen in landscape mode. You can't see it but I notice it when I try to drag and down anything from one side of the screen to the other. I've tried troubleshooting: force restart, checking the storage space, updating, removing the screen protector and checking the charger cable. I'm not really sure what to do.

Any suggestion or help is absolutely appreciated.