[Hippy]

you have or added the .htaccess ?

as per
edit your .htaccess If you have one

add

  # Send hardcoded ipa scores to arcade instead
  RewriteCond %{QUERY_STRING} act=Arcade [OR]
  RewriteCond %{QUERY_STRING} autocom=arcade
  RewriteRule ^index.php arcade.php [L,QSA]

under

  RewriteEngine on

if you don't have a .htaccess file ,make one and add this to it and upload to your root dir

  RewriteEngine on

  # Send hardcoded ipa scores to arcade instead
  RewriteCond %{QUERY_STRING} act=Arcade [OR]
  RewriteCond %{QUERY_STRING} autocom=arcade
  RewriteRule ^index.php arcade.php [L,QSA]

if your RewriteEngine is not one this will not work
ask your host to enable it