I am quite new to the area of website development and am having an issue with my website's homepage. I was running Wordpress 3.5.x and yesterday updated to Wordpress 4.7.1. I updated Wordpress manually by deleting all the files/folders (except wp-content, wp-config.php) and replacing them from a fresh download of Wordpress.
And now the homepage for my website does not load. All the other pages are loading fine.
Homepage -> http://isas.hu
Other page -> http://isas.hu/university/the-university/ - This, for example, and all other pages work absolutely fine.
When I try to go to the homepage it redirects to my Host server and gives a message in Hungarian, which translates to: "The website is not uploaded" and "The space is provided by Mediacenter"
I tried replacing the new index.php file with the old one. I also replaced the new template-loader.php (in the wp-includes folder) with the old one but nothing seems to work. Any help would be greatly appreciated.
