Fatal error: Uncaught Facebook\Exceptions\FacebookSDKException: Required "app_id" key not supplied in config and could not find fallback environment variable "FACEBOOK_APP_ID" in /var/www/web29339727/html/domainbewertung/Upload/core/library/facebook/Facebook.php:139
Stack trace:
#0 /var/www/web29339727/html/domainbewertung/Upload/core/controllers/facebook.php(38): Facebook\Facebook->__construct(Array)
#1 /var/www/web29339727/html/domainbewertung/Upload/core/app.php(148): require('/var/www/web293...')
#2 /var/www/web29339727/html/domainbewertung/Upload/index.php(25): require('/var/www/web293...')
#3 {main}
thrown in /var/www/web29339727/html/domainbewertung/Upload/core/library/facebook/Facebook.php on line 139