Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 762bdd6ba7eef4b9e8cf373247e6aa21d1e5d7cc280e8f76b28f113e58e53673:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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