joystick malfunctioning after taking controller apart

My left bumper was just so i opened up the controller and fixed it. The problem is now the right joystick doesn’t work properly. It will just go up randomly while I’m playing a game. I don’t know what i could’ve done to the joystick when all I touched was the bumpers.

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

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0