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 /home/www/web36/html/v3/wp-content/plugins/nextend-facebook-connect/Facebook/Facebook.php:139 Stack trace: #0 /home/www/web36/html/v3/wp-content/plugins/nextend-facebook-connect/nextend-facebook-connect.php(160): Facebook\Facebook->__construct(Array) #1 /home/www/web36/html/v3/wp-content/plugins/nextend-facebook-connect/nextend-facebook-connect.php(110): new_fb_login_action() #2 /home/www/web36/html/v3/wp-includes/class-wp-hook.php(286): new_fb_login_compat(Object(WP)) #3 /home/www/web36/html/v3/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #4 /home/www/web36/html/v3/wp-includes/plugin.php(515): WP_Hook->do_action(Array) #5 /home/www/web36/html/v3/wp-includes/class-wp.php(373): do_action_ref_array('parse_request', Array) #6 /home/www/web36/html/v3/wp-includes/class-wp.php(713): WP->parse_request('') #7 /home/www/web36/ht in /home/www/web36/html/v3/wp-content/plugins/nextend-facebook-connect/Facebook/Facebook.php on line 139