Set up the correct redirect to the main mirror

Good afternoon!

There is a website: www.obstore.ru (Bitrix Aspro maximum).

Set up the correct redirect to the main mirror:

www.obstore.ru/]https://o... (only this option should be left)obstore.ru/http://www.obs...
All other options should be redirected to the main mirror.

I would like to find a programmer to whom we will periodically contact about various improvements to the site.

Sincerely,
Alexander.