Flow price: --
f7693ab435101e0a75f8942f48f49f5646a4f8055e967d2b20116e0dd72d8884

Transaction

Hash: f7693ab435101e0a75f8942f48f49f5646a4f8055e967d2b20116e0dd72d8884
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f7693ab435101e0a75f8942f48f49f5646a4f8055e967d2b20116e0dd72d8884:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f7693ab435101e0a75f8942f48f49f5646a4f8055e967d2b20116e0dd72d8884
Status:
ERROR
Block height:
39727197
Block id:
cc17642c57723ad41ba98d0396867ae544ff4d56c156d53008f242799e1324de
Timestamp:
Wednesday 26 October 2022 at 04:16:03 UTC
()
Proposer:
Authorizers:
Gas used:
49