Hi,
The fix is very simple unless i have overlooked something else.
The problem arises because there is conflict between JQUERY versions. My proposed solution is to completely move the plugin Jquery namespace to a new namespace in new object.
Instructions:
1) Locate var $j = jQuery.noConflict(); in calendar-posts.php and set the noConflict to true.
Expected:
var $j = jQuery.noConflict(true);