After Repair: Home button working, Touch ID not

I just finished swapping my screen after two cracked ones and a malfunctioning one. After these three fixes, everything was working perfectly fine (except for the screen on the last two changes; bought from the wrong person I guess). Now, after putting in the newest screen (and having to readjust the cables as one wasn't in all the way, making this newest screen malfunction…) Touch ID is no longer working. When trying to activate it, it sends me to a "Failed" screen immediately after trying. Does anyone know what this problem would be? I've tried readjusting both Home button connections and nothing seems to work. If I did damage it, can you give me a link to the part I need to repair it? Thanks for any help!