Flow price: --
c8c552ec23cb2f7215b4e40d1b21c21efc3bb8cd37aed0f48860b997907ea729

Transaction

Hash: c8c552ec23cb2f7215b4e40d1b21c21efc3bb8cd37aed0f48860b997907ea729
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c8c552ec23cb2f7215b4e40d1b21c21efc3bb8cd37aed0f48860b997907ea729:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
c8c552ec23cb2f7215b4e40d1b21c21efc3bb8cd37aed0f48860b997907ea729
Status:
ERROR
Block height:
40056768
Block id:
07605a6a7c99646c7315e8f544c90bf6ece21f54f52985f2d63e57d5fc616497
Timestamp:
Monday 31 October 2022 at 16:31:03 UTC
()
Proposer:
Authorizers:
Gas used:
47