Why is the admin in joomla 2.5 not displayed correctly?

Question

CMS

We made a small site on our domain and everything was fine, after transferring the site to another domain and hosting, when entering the admin panel, we see this thing :
cs322916.vk.me/v322916292/4fa1/3loY0dkgBxU.jpg
figs with it, just think, the headings are like from tables in the database, "but it turned out that this affects a lot, which you can’t close your eyes to.
At first I sinned on hosting, but then they transferred the site to the old hosting and domain in the same way, and, guess what? - That's right, everything remains the same.
That is, something happened during the initial transfer, which contributed to this.
Help, who faced a similar problem and how it can be solved?

Answer 1

most likely, the language files are lost somewhere, these constants should be replaced with words from the selected admin language