Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 8a723ecbb32c2d0f11a3bcdc2176db37e7ba05ac74c3f2a5b1806515c67a1c3e:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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