Flow price: --
9570eff3dd1bef3ba4da23f4c0f4e776a5c4fd4f550a537b52d6925564735289

Transaction

Hash: 9570eff3dd1bef3ba4da23f4c0f4e776a5c4fd4f550a537b52d6925564735289
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9570eff3dd1bef3ba4da23f4c0f4e776a5c4fd4f550a537b52d6925564735289:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9570eff3dd1bef3ba4da23f4c0f4e776a5c4fd4f550a537b52d6925564735289
Status:
ERROR
Block height:
40117643
Block id:
71923fb7bf5faf2bdd99f11049120c5a1e058d6b72acb30eca25360c10326068
Timestamp:
Tuesday 1 November 2022 at 17:03:52 UTC
()
Proposer:
Authorizers:
Gas used:
47