Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> c7f5eb60ecb246d07a017e3a86e7577a9f75b327ca1c64d7cae18fcea9f53ffd:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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