Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> ed658b0cdc89ed40d5210b3f06aa7026bc7ff80ef5bf0ec0c53ae360a5b20d3e:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34