Flow price: --
9b1321c557d8f6081507e186c3c57ef148058079a0caf63e4b1e38b1cbdb0da5

Transaction

Hash: 9b1321c557d8f6081507e186c3c57ef148058079a0caf63e4b1e38b1cbdb0da5
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9b1321c557d8f6081507e186c3c57ef148058079a0caf63e4b1e38b1cbdb0da5:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9b1321c557d8f6081507e186c3c57ef148058079a0caf63e4b1e38b1cbdb0da5
Status:
ERROR
Block height:
40055635
Block id:
85094ee3dd0f93e98334cb05e831dc5afc9f493195264a9b381b2d04a063de52
Timestamp:
Monday 31 October 2022 at 16:03:15 UTC
()
Proposer:
Authorizers:
Gas used:
49