The error was due to a broken link in events-calendar.php.
Line 211: wp_enqueue_script(‘jqueryclockpicker’, ‘/wp-content/plugins/events-calendar/js/jquery.clockpick.1.2.6.js’, array(‘jquery’), ‘1.2.6’);
The clockpick file in events-calendar/js is named jquery.clockpick.min.js not jquery.clockpick.1.2.6.js.
Unfortunately my datepicker and timepicker are still not functioning.