Fatal error: Uncaught Error: Interface 'Facebook\PseudoRandomString\PseudoRandomStringGeneratorInterface' not found in /home/ncue/public_html/facebook/php-graph-sdk/src/Facebook/PseudoRandomString/UrandomPseudoRandomStringGenerator.php:28 Stack trace: #0 {main} thrown in /home/ncue/public_html/facebook/php-graph-sdk/src/Facebook/PseudoRandomString/UrandomPseudoRandomStringGenerator.php on line 28