What is the reason of pain made crown
On 2005 who doctor will replace old crown

A crown is no guarantee, I've found. There can be many reasons for the pain. We don't even know if you had a root canal or not.
I had pain under a crown even with a root canal, because the tooth had cracked vertically all the way down to the jaw, and infection moved in.
You need a dentist.

What is the reason of pain made crown
On 2005 who doctor will replace old crown

You don't need the crown replaced unless it's broken. The crown doesn't fix pain. It's just a cover.
Again - go to a dentist. (And the dentist who did the crown isn't going to fix it for free.)