Flow price: --
16be39d12ed41d98696ba7e1fcd4beab33e70125eba608308e78eb76f1414592

Transaction

Hash: 16be39d12ed41d98696ba7e1fcd4beab33e70125eba608308e78eb76f1414592
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 16be39d12ed41d98696ba7e1fcd4beab33e70125eba608308e78eb76f1414592:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
16be39d12ed41d98696ba7e1fcd4beab33e70125eba608308e78eb76f1414592
Status:
ERROR
Block height:
39867953
Block id:
9e4c21bcdd43e94c6479a813c286e7d6e2d07ed71f9664c8bca68ad8467946a5
Timestamp:
Friday 28 October 2022 at 13:00:24 UTC
()
Proposer:
Authorizers:
Gas used:
47