Language not working!

Hello, everyone!

I usually always resolve my issues. But now it seems that I am at a dead end. This, for me as a web designer, is very, very strange.

I have my language installed and working perfectly in wordpress on my localhost. If I upload my site on the server, the language is not working anymore. I searched everything, didn’t find something as probably no one has an issue like this.

To eliminate all the posts and questions here if I did everything OK, the answer is YES. The wp-config is perfectly edited, the language is defined there as it should be. I have put the folder “languages” along with the .mo file both in wp-includes and wp-content. Let’s start from one point. Everything is configured well. It is working perfectly under localhost.

I also wrote to the server technical, but they said that I should contact wordpress.

Hopefully someone will answer, or at least will try to do something.