I used Magix Web Designer Premium to create my website in 2015 and everything has always been seen correctly. For two days now, all PDF attachments (including other formats) no longer open on the website, but the "Not Found" page appears. The requested URL was not found on this server. Why? I tried to reattach the PDFs but they don't attach, the Not Found page always appears. It's impossible for me to re-upload all the attachments; something has happened to the system. I urgently need to resolve this issue because we are a public entity.

The website is www.riminiperitindustriali.it

My email is: riminiperitindustriali@gmail.com

Thank you very much. Help me please!!!