I changed alias, the page began to open at the new address and at the old one, what should I do?

Question

Joomla

Installed virtuemart.
I changed the aliases for the goods, the goods began to open at both addresses.
How to fight? What to do?

Answer 1

Hello. You can search for jl no doubles plugin.
In fact, only you will know about the old links, Joomla will collect all pages with and without www, and such pages will also be duplicates.
First, make edits in the .htaccess file
To do this, type on the Internet - how to remove duplicate pages from www on the Joomla site.