Flow price: --
b8475494d5429ee3963e78fce38f6a4f9155fadbbce0378e3e3bf68fc99dde83

Transaction

Hash: b8475494d5429ee3963e78fce38f6a4f9155fadbbce0378e3e3bf68fc99dde83
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b8475494d5429ee3963e78fce38f6a4f9155fadbbce0378e3e3bf68fc99dde83:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b8475494d5429ee3963e78fce38f6a4f9155fadbbce0378e3e3bf68fc99dde83
Status:
ERROR
Block height:
40058816
Block id:
721de54daace04d3ac331749eaeb1672dc56645ed7e62eed9959472dba04b5bb
Timestamp:
Monday 31 October 2022 at 17:21:12 UTC
()
Proposer:
Authorizers:
Gas used:
48