[Resolved] Turkmen language related issue

I followed your link.
Logged into the admin panel.
After that, in String Translation, I found "Please enter your password", translated into Russian.
The error appeared on the second one on the site, that is, after that, incomprehensible characters appeared on the site.
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Here you can see.

I will wait for news from you.

Thank you for considering my issue.
But unfortunately the problem is not solved, I ask you to continue the search for a solution to this problem.
And so I did everything as you said, you can even watch my video, at this link:
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As you can see, the error occurred again, and I had to restore my site and database again.
If I'm doing something wrong, please show me on the video how to do it right.
These two days you can even do it on a live site, in case of errors I will restore the site and database.
The most important thing is the phrase "Please enter your password" I give you just as an example, there are a lot of similar problem words.

Thanks for your videos.
Yes, apparently, as I understand it, all words will have to be translated into Russian and Turkmen again in order to eliminate such errors (incorrect characters) in the future.
I ask you to show a specific example of manually translating two words, the word Register, hidden link
And also the word Please enter your password
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Please show specific examples, I want to see this translation on the page. I ask you for this translation in detail.
Now, as I see it, I do not have specific instructions on how to translate the words I need. I really hope for you.

Yes, it's much clearer now, thanks.
It turns out, in principle, manually can be done, but it will take a very long time.
So please help me to do with automatic translation from English into Russian.
Please take the maximum number of incorrect words (which require translation, which are with errors) and please send them for automatic translation.
I honestly have a very poor understanding of this, please do all the necessary steps for me, I will be very grateful.
And then what requires manual correction, I will do everything myself, the main thing is please explain in detail, if possible, what needs to be done. It would also be nice if you then explained whether you need to manually fix the Turkmen version.
You have all the necessary login details.
In case of big problems, I will do a backup restore.
And most importantly, then please turn off automatic translation so that it does not confuse the site itself. I want everything to be as before, without automatic translation, since I basically don’t need it in the future.
Thank you, I wish you a good day.
I hope very much for your help.

I did as you asked. I signed up for a pay-as-you-go model. hidden link
Please help me to make translations for wrong characters only. You understand in what situation I am now, I really hope that the whole translation will be very smooth and will not bring problems for the site. All hope is in you. I hope that the wrong characters will disappear from the site forever. I will do everything that automatic translation cannot do manually, I just ask you to tell me all the points.
After you get an automatic translation into Russian, please show me and teach me how to translate it into Turkmen. (or maybe Turkmen will not be needed at all)