Modx revo incorrectly displays the date in Russian, how to fix it?

Question

MODX

Good afternoon.
The month is displayed incorrectly when displaying a resource (22 ��� 2018). It is the month in Russian characters. When I choose a numerical output of the date - there is no problem.
I retrieve resources using getResources.
Output from tpl:

But I also tried to enter on the site page:
[[*publishedon:strtotime:date=`%d %B %Y`] ]
In the system settings of the admin panel, where "Dictionary and Language", it is written in the locale: ru_RU.UTF-8
also tried to write it like this: ru_RU.UTF8
Character encoding UTF-8
On the pages in the head it is written: I use the Open server locale Version MODX: Revolution 2.6.0-pl I wrote in index.php:
<meta charset="utf-8">
setlocale(LC_ALL, 'ru_RU.UTF-8');
In the Open server settings, where the "Encodings" section is, Mysql is set to utf8_general_ci .
The HTTP server specified utf-8 . It didn't help either.
Help me solve the problem, please.