The problem with the correct display of the Russian language on the site.

Before the update, I used EVO version 12 - everything was in order.

Then I updated the project in EVO 2020.3 and the problem with displaying the language began. Now I updated the project in the latest version of PRO - the problem remained. Advise what to do, where to look for the problem.

Website here www.envirco.com.ua