Flow price: --
b5a1e29458569c684172a64248f2ea4bb275511b08a6e460a6f07299bde7aef1

Transaction

Hash: b5a1e29458569c684172a64248f2ea4bb275511b08a6e460a6f07299bde7aef1
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b5a1e29458569c684172a64248f2ea4bb275511b08a6e460a6f07299bde7aef1:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b5a1e29458569c684172a64248f2ea4bb275511b08a6e460a6f07299bde7aef1
Status:
ERROR
Block height:
39926044
Block id:
7fa997630fec7cf4c236dfbe947a41b00207c886ffeb2ef1b77661dd97b3d0c6
Timestamp:
Saturday 29 October 2022 at 12:13:06 UTC
()
Proposer:
Authorizers:
Gas used:
51