If your server is using a very old version of PHP then visit the following link first:
If for some mysterious reason your hosting provider resist upgrading PHP on your server then do the following tweaks to the WP Affiliate plugin to make it work on your server.
This tweak will also address the following error that you may get on a PHP4 server:
Warning: cannot yet handle MBCS in html_entity_decode()! in
/example/some-folder/some-folder/wp-content/plugins/wp-affiliate-platform/wp_affiliate_platform_menu.php on line xxx
1: Open the "wp_affiliate_platform_menu.php" file from the "wp-affiliate-platform" directory and search for the following:
ENT_COMPAT, "UTF-8"
Once you find it replace it with the following (there should be two occurences):
ENT_COMPAT
2: Open the "index.php" file from the "affiliates" directory (this directory is inside the "wp-affiliate-platform" directory) and search for the following:
ENT_COMPAT, "UTF-8"
Once you find it replace it with the following:
ENT_COMPAT
Save and upload these files and that should do the trick.