Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 8de805b03a88f2a3186f3339cbc0a4fe9c9750d46aea8bb15e46b780adde5d05:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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