Flow price: --
b3836f0409e9effd3d7fdfe8239e3cdf5d01e4ffb0eecee82a7669efaed44a30

Transaction

Hash: b3836f0409e9effd3d7fdfe8239e3cdf5d01e4ffb0eecee82a7669efaed44a30
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b3836f0409e9effd3d7fdfe8239e3cdf5d01e4ffb0eecee82a7669efaed44a30:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b3836f0409e9effd3d7fdfe8239e3cdf5d01e4ffb0eecee82a7669efaed44a30
Status:
ERROR
Block height:
40036311
Block id:
9226a51eb2f08ae2e3d3726bf469cecb9d4684d8ccca1f39f6bce7d101d9ff2a
Timestamp:
Monday 31 October 2022 at 08:14:55 UTC
()
Proposer:
Authorizers:
Gas used:
47