Yes, get the high point on the crown corrected. Rest teeth should close properly once it is corrected.

yes it needs some correction.  please visit you dentist & it will be done. the cap is little higher than your normal bite which in our parlance is called a "high point". Most of your problem will b solved by minor adjustment

It seems that the positioning of the Crown cap is not correct.  I would advice you to consult your dentist again and discuss that same with him. It must be adjusted properly for proper closing of mouth.  If not done it might cause lead to some other problem. My advice is to get it checked ASAP.

It seems there is an interference when you bite due to incomplete seating of your crown. You will have to check this before the pain aggregates . Traumatic bite can give you discomfort.

Hello sir, the moment the cap/crown was placed on your tooth, were your rest of the teeth closing then ? If the difficulty in closing mouth is since then, the possibility is that there may be some problem with the crown fit. And if closing rest of the teeth was not a problem then, I would advise you to report back to the dentist and get an xray done to review the status of root canal treated teeth on which the crown was placed.