If you find these 2 errors in the error log.

• …file_get_contents() [function.file-get-contents]: http:// wrapper is disabled in the server configuration by allow_url_fopen=0 in…
• …failed to open stream: no suitable wrapper could be found in…

Edit the php.ini and enable the following 2 settings.

allow_url_fopen = On
allow_url_include = On

Restart Apache and they should be fixed.

Done =)

Reference:

• wrapper is disabled in the server configuration by allow_url_fopen=0 in
• failed to open stream: no suitable wrapper could be found in – error