The piece of wire connecting those 3 pins on the jack must be removed. The way it is wired all jack contacts are grounded and it can not work.
Also, the pot you replaced (3rd from jack), it looks like one of the legs is bent over and the solder may be touching the ground trace. You need to make sure it is only touching the trace it connects to.
Also, the pot you replaced (3rd from jack), it looks like one of the legs is bent over and the solder may be touching the ground trace. You need to make sure it is only touching the trace it connects to.