Flow price: --
a7c8222a69deeec4200b1492f0b8156a9bfaab6a70d384b9dea810bfd7880083

Transaction

Hash: a7c8222a69deeec4200b1492f0b8156a9bfaab6a70d384b9dea810bfd7880083
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a7c8222a69deeec4200b1492f0b8156a9bfaab6a70d384b9dea810bfd7880083:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a7c8222a69deeec4200b1492f0b8156a9bfaab6a70d384b9dea810bfd7880083
Status:
ERROR
Block height:
39791147
Block id:
35761a0114417c30cb405a77470dea2c19b3bd80a05a88ec0f4980979feb5046
Timestamp:
Thursday 27 October 2022 at 06:00:28 UTC
()
Proposer:
Authorizers:
Gas used:
50