Flow price: --
1e15488741c9d1d60b210074361df4efb75b23ecc7a5e571fde40e78c120dcab

Transaction

Hash: 1e15488741c9d1d60b210074361df4efb75b23ecc7a5e571fde40e78c120dcab
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 1e15488741c9d1d60b210074361df4efb75b23ecc7a5e571fde40e78c120dcab: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:
1e15488741c9d1d60b210074361df4efb75b23ecc7a5e571fde40e78c120dcab
Status:
ERROR
Block height:
39850836
Block id:
2fcd1e0374e08bd2cdbc4a027ce9809c323459f55dcec570659436ee8de46f4c
Timestamp:
Friday 28 October 2022 at 06:06:00 UTC
()
Proposer:
Authorizers:
Gas used:
46