I have a black line down the middle of my screen after replacement

I recently replaced the cracked screen on my ipad pro 10.5. To be more accurate i replaced the digitizer and the screen glass as one unit. now i have a black line down the middle of the screen.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2942205:01crwdne2942205:0:

Try reseating the connector, and see if anything is damaged

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0