Flow price: --
497d7d1cfe44ac0d7239a9a7eb2d57daebff2c6ad31c2bd71ce29b7a9bb7ea30

Transaction

Hash: 497d7d1cfe44ac0d7239a9a7eb2d57daebff2c6ad31c2bd71ce29b7a9bb7ea30
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 497d7d1cfe44ac0d7239a9a7eb2d57daebff2c6ad31c2bd71ce29b7a9bb7ea30:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
497d7d1cfe44ac0d7239a9a7eb2d57daebff2c6ad31c2bd71ce29b7a9bb7ea30
Status:
ERROR
Block height:
39989661
Block id:
7863503ece9936da439479e1ea5f834c08143197e622abfa8bf50a7562ed1c55
Timestamp:
Sunday 30 October 2022 at 13:37:43 UTC
()
Proposer:
Authorizers:
Gas used:
48