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Fatal error: Uncaught Facebook\Exceptions\FacebookSDKException: Sessions are not active. Please make sure session_start() is at the top of your script. in /home/resimpli/public_html/Facebook/PersistentData/FacebookSessionPersistentDataHandler.php:50 Stack trace: #0 /home/resimpli/public_html/Facebook/PersistentData/PersistentDataFactory.php(57): Facebook\PersistentData\FacebookSessionPersistentDataHandler->__construct() #1 /home/resimpli/public_html/Facebook/Facebook.php(155): Facebook\PersistentData\PersistentDataFactory::createPersistentDataHandler('session') #2 /home/resimpli/public_html/login.php(262): Facebook\Facebook->__construct(Array) #3 {main} thrown in /home/resimpli/public_html/Facebook/PersistentData/FacebookSessionPersistentDataHandler.php on line 50