Unserializer.php on line 826

I enfretando the same problem

Fatal error: Can not access protected property Error :: $ message in/home/junta578/public_html/wp-content/themes/funding_press_2016/funding/lib/PayPal/Serializer/Unserializer.php on line 826

Then, use the hosting Hostgator, but his tutorial on how solve this problem in other posts, is very vague, does not tell you where we put the path of PEAR extamente.

I would ask you or kindness, to explain in detail, what to do to solve this problem, as do three months I bought the theme, and still could not use