Issue with nginx attemping to open myBB files instead of running them

[Crazycat]

Where is the php configuration ?

   location ~ \.php {
      include snippets/fastcgi-php.conf;
      # With php-fpm (or other unix sockets):
      fastcgi_pass unix:/run/php/php7.3-fpm.sock;
      # With php-cgi (or other tcp sockets):
      # fastcgi_pass 127.0.0.1:9000;
   }