Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
  --> 59b5fd965cf4b5896f4edf7331cd4fe402311cd77b5aec5a36f248ce88bae2cd:26:8
   |
26 |         eventRef.addTicketType(ticketTypeID: ticketTypeID)
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: pre-condition failed: The TicketType has already beed added to the event.
   --> 09e8665388e90671.TixologiTickets:308:46
    |
308 |                 self.numberMintedPerTicketType[ticketTypeID] == nil: "The TicketType has already beed added to the event."
    |                                               ^^^^^^^^^^^^^^^^^^^^^