The 'updateInvite' action calling XML.php is called from /modules/boonex/messenger/classes/BxMsgModule.php at line #138 in function serviceGetInvitation(). See what happens if you comment out the javascript making the call.
Strange thing is, I can't find any other references to 'updateInvite' or 'serviceGetInvitation' in the code, including no explicit call to serviceGetInvitation() for creating the javascript that should call the 'updateInvite' action.
Strange thing is, I can't find any other references to 'updateInvite' or 'serviceGetInvitation' in the code, including no explicit call to serviceGetInvitation() for creating the javascript that should call the 'updateInvite' action.