According to the code sample and line numbers you mention, you don't have the latest verstion.
Latest version is able to know if file get content should be used or cUrl.
It should solve your issue.
Redownload latest version and let me know.
- Need help? Post the URL of the related page (eventualy as confidential info), it will help solve your issue faster.
- An error, notice or warning? report the exact message including the line number
- If you get a white page , enable error reporting and / or check your server error logs.