Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> a83055b926e9074f328a3b8f2bdc52f2e69c1d6c3a9256b8ef73f40f55b9c07e:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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