Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> e14d57e8ff92bc2c6894a5f07865aacf5df4ec3dea4b7d0170f46d2169ca45ae:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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