I can not save setting after i set feed value
When i try to save setting than system show Alarm !

Warning: json_encode() expects exactly 1 parameter, 2 given in /home/livingpi/public_html/wp-content/plugins/wd-facebook-feed/admin/models/FFWDModelInfo_ffwd.php on line 296

and pop up alarrm "error : (#15) reguires session when calling from a desktop app."

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