Pressure pain on tooth that had a root canal and crown put on 5 years ago, what could the cause of the pain? (photos)

Hada root canal done at least 5 years ago and had a crown put over the tooth and now suddenly I woke up one day and that said crown sent pain when pressure is applied when chewing or when the bottom teeth touch it, Ive also noticed the crown hits the bottom row of teeth before the teeth near it do and vice versa so maybe It needs to be filed, realigned, or a new one be placed but Im not sure, multiple things also said infections etc, its not constant pain but sharp pain that lingers then leaves.