Flow price: --
a88e5489d12f187fd1b21a1c7dde8cb11128222947481ed863e9a0e6bbd767cb

Transaction

Hash: a88e5489d12f187fd1b21a1c7dde8cb11128222947481ed863e9a0e6bbd767cb
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a88e5489d12f187fd1b21a1c7dde8cb11128222947481ed863e9a0e6bbd767cb: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:
a88e5489d12f187fd1b21a1c7dde8cb11128222947481ed863e9a0e6bbd767cb
Status:
ERROR
Block height:
39840034
Block id:
c178bc8adc279d3e86f803a0247d024a68d92ec2900dd95094133d195763093a
Timestamp:
Friday 28 October 2022 at 01:45:25 UTC
()
Proposer:
Authorizers:
Gas used:
48