Flow price: --
21d4a99758903178818c5a846e6b7242050b0139e71bb29c2dfecbe7dcbb6168

Transaction

Hash: 21d4a99758903178818c5a846e6b7242050b0139e71bb29c2dfecbe7dcbb6168
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 21d4a99758903178818c5a846e6b7242050b0139e71bb29c2dfecbe7dcbb6168:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
21d4a99758903178818c5a846e6b7242050b0139e71bb29c2dfecbe7dcbb6168
Status:
ERROR
Block height:
40099400
Block id:
538d3a41a82de2c8cf624d99dd6a47d2627ea581a4affc8bf6dec4ea8377c3a2
Timestamp:
Tuesday 1 November 2022 at 09:40:52 UTC
()
Proposer:
Authorizers:
Gas used:
47