Flow price: --
1617576d6caf5eefca5db13edbee24b6b5b9aca4d91c929b51e101ba5e271ca3

Transaction

Hash: 1617576d6caf5eefca5db13edbee24b6b5b9aca4d91c929b51e101ba5e271ca3
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 1617576d6caf5eefca5db13edbee24b6b5b9aca4d91c929b51e101ba5e271ca3:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
1617576d6caf5eefca5db13edbee24b6b5b9aca4d91c929b51e101ba5e271ca3
Status:
ERROR
Block height:
39867535
Block id:
a9a0ab26c3c5c47bb2d660b7d31405a025e96a06e1c61eb8fdc3e732386066a8
Timestamp:
Friday 28 October 2022 at 12:50:26 UTC
()
Proposer:
Authorizers:
Gas used:
48