Why is the publish button not active in the google.translate.com website translator and how can I fix it?

Question

Google

I translated the page in google site translator . I added the code generated by google to the page, the plugin for changing the language began to be displayed on the page.
Next, I need to make changes to the translation, for example, to make sure that the site name is not translated. To do this, I go to Translator Tools , edit the translation and save it. I need to publish a new translation on the original site, but the "Publish to source page" button is not active. How to fix it?