Onlyoffice community edition stay on the load page, it don't show the first page

Good evening to all.
i install the community edition of onlyoffice in my server with docker method. then, i finish the steps installation and i enter my ip adress in a web browser to begin with configuration. like the first thing is that onlyoffice charge information to show the first page (registration page), since two day, it’s don’t go up. Now, i purge all paquet in my server and i reinstall newly. but, it don’t change. i verify my onlyoffice network and it is OK.

that is the page i am saying. please i need urgently your differents answers. Thanks