Flow price: --
164ec5cf6afb2f8d198fda51e774868e501e9c0797a7faee11e4b1a1c7758589

Transaction

Hash: 164ec5cf6afb2f8d198fda51e774868e501e9c0797a7faee11e4b1a1c7758589
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 164ec5cf6afb2f8d198fda51e774868e501e9c0797a7faee11e4b1a1c7758589:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
164ec5cf6afb2f8d198fda51e774868e501e9c0797a7faee11e4b1a1c7758589
Status:
ERROR
Block height:
40052351
Block id:
ed13065ebb8dbec157429200234b41348898bed436a3d5ac6a3782b1ec171064
Timestamp:
Monday 31 October 2022 at 14:43:14 UTC
()
Proposer:
Authorizers:
Gas used:
50