After transfer of the .ini file it created this here calendar

Hi Алексей,

Could you please provide me your FTP access detail (at Site Info)?
I need that for debugging your site.

Regards,
Albert

OK. I edited the settings of my conversion and wrote there ftp access.

Hi Алексей,

Sorry, I'm not pay attention with your Misc Info.
My IP: 223.164.64.116

Please unblock me first.

Regards,
Albert

OK, access is open for your IP

Hi Алексей,

I fixed for you, the problem is with PHP function it self about substr functions not support UTF-8 encoding character.
Here what I did:
at file: /components/com_community/libraries/fields/date.php
code line 181:

from 
return "'" . substr($item, 0, 3) . "'";

to
return "'" . mb_substr($item, 0, 3, 'UTF-8') . "'";

it worked thanks!