Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 6682c8051c5dd9c1800af15ddd5c0c4d13f1647d4b7bf77f745f7fc8c06bd58c:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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