Flow price: --
57f81879148c9186e3e203be650e51dd99bae5d86588450543f9e8f8a7c0cc56

Transaction

Hash: 57f81879148c9186e3e203be650e51dd99bae5d86588450543f9e8f8a7c0cc56
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 57f81879148c9186e3e203be650e51dd99bae5d86588450543f9e8f8a7c0cc56:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
57f81879148c9186e3e203be650e51dd99bae5d86588450543f9e8f8a7c0cc56
Status:
ERROR
Block height:
39968892
Block id:
9b1dffd3130d8d183a3776c0bc3f07c2019be75051ed36c654570f5fc190c428
Timestamp:
Sunday 30 October 2022 at 05:18:49 UTC
()
Proposer:
Authorizers:
Gas used:
49