Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> fa0b8ca4b008924d6d2e10075dbcfccdf2e42b2a56c740ec5a0476f3c391ad6c:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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