CODE_ERROR

There is an error in the cadence code of this transaction.

[Error Code: 1101] error caused by: 1 error occurred: * transaction invocation failed when executing transaction: [Error Code: 1101] cadence runtime error: Execution failed: --> 7920db9b39f7b3c05b7d7c53dbdcff73474e6e0e4e518239766b284d7a5b0da1:28:28 | 28 | self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true") | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: unexpectedly found nil while forcing an Optional value --> 1e3c78c6d580273b.LNVCT:295:24