Flow price: --
01b21408ca2a68dd776b6d1a952ea47dd1c410e185fd9a36b9017441bbeda459

Transaction

Hash: 01b21408ca2a68dd776b6d1a952ea47dd1c410e185fd9a36b9017441bbeda459
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 01b21408ca2a68dd776b6d1a952ea47dd1c410e185fd9a36b9017441bbeda459:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
01b21408ca2a68dd776b6d1a952ea47dd1c410e185fd9a36b9017441bbeda459
Status:
ERROR
Block height:
40136021
Block id:
f604bfae82180ad2e431d9062331f52db3d79ac3d5937ad4e1118fce9e54f2a7
Timestamp:
Wednesday 2 November 2022 at 00:34:04 UTC
()
Proposer:
Authorizers:
Gas used:
46