Flow price: --
d2180b11d8fce591f39b6c98462f9a62183a4a521d742056164fd4204fa03857

Transaction

Hash: d2180b11d8fce591f39b6c98462f9a62183a4a521d742056164fd4204fa03857
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d2180b11d8fce591f39b6c98462f9a62183a4a521d742056164fd4204fa03857:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
d2180b11d8fce591f39b6c98462f9a62183a4a521d742056164fd4204fa03857
Status:
ERROR
Block height:
39746657
Block id:
29649839fce61f01779c17c5e3263740abd5dc74a7aaa98bb342cf44dbafb084
Timestamp:
Wednesday 26 October 2022 at 12:06:56 UTC
()
Proposer:
Authorizers:
Gas used:
46