Fatal error: Uncaught Error: Non-static method tc_calendar::check_json_decode() cannot be called statically in /webroot/t/h/theco030/primary/www/blog/wp-content/plugins/appointment-calendar/calendar/calendar_form.php:32 Stack trace: #0 {main} thrown in /webroot/t/h/theco030/primary/www/blog/wp-content/plugins/appointment-calendar/calendar/calendar_form.php on line 32