Flow price: --
4170cacdc638907ea297b7a36dad2a3715a15f39c62fba0e69966350474b3dae

Transaction

Hash: 4170cacdc638907ea297b7a36dad2a3715a15f39c62fba0e69966350474b3dae
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 4170cacdc638907ea297b7a36dad2a3715a15f39c62fba0e69966350474b3dae: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:
4170cacdc638907ea297b7a36dad2a3715a15f39c62fba0e69966350474b3dae
Status:
ERROR
Block height:
39864356
Block id:
b302103974b5ab17d076ef2210dd34c0d9ffc81d294cb088af1419c00bfd2e18
Timestamp:
Friday 28 October 2022 at 11:34:06 UTC
()
Proposer:
Authorizers:
Gas used:
48