Bottom Portion of iPhone 6 is not responsive

Prior to this issue, my Iphone 6's screen was popping outwards because the battery was swelling. I purchased the ifixit kit to replace the battery, and I successful did that. However, I noticed that the bottom portion of my iphone's screen is not responsive. I can click on the apps on the bottom portion, but the very bottom of the screen where the screen ends does not respond. I can't pull up the dock when the phone is vertical. Do I have to purchase a new screen to fix this problem?