you did not uplaod the classes for ticket,internalTicket,ExternalTicket and Date as well

Ticket - TicketCount: int - ticketid : int - ticket Description : String - dateSubmitted : Date - completed : bool + ticketili: +ticket description : String. submitted i Date): + setoescription(description: Strinp) + getoescription0 String. iseticketid ( tichetid int) // non negation ids onty tgetricketidd) int. al=AKAGjsteV4 C24MjwlpsdOU4vAFo CvOBXotMOUSA0