Fatal error: Can’t inherit abstract function…

Fatal error:Can'tinherit abstractfunctionAventura\Wprss\Core\Plugin\FactoryInterface::create()(previously declared abstractinAventura\Wprss\Core\Plugin\AddonFactoryInterface)in/home/sitename/public_html/wp-content/plugins/wp-rss-aggregator/includes/Aventura/Wprss/Core/Plugin/AddonFactoryInterface.php on line1

Cause

This fatal error presents itself when you are using an older version of PHP. WP RSS Aggregator requires at least PHP 5.3.9. 

Solution

Please confirm the following with your hosting provider:

• Whether you have a recent PHP version, above PHP 5.3.9.
• If not, have the PHP version upgraded to one above PHP 5.3.9. 
  • We recommend using the most recent, stable version of PHP.
• Once you’ve done so, the error will no longer present itself.