Flow price: --
4143703704a3b6a91f1fee7c30735af8dfef716145e635dc9efd13a49b14d6c3

Transaction

Hash: 4143703704a3b6a91f1fee7c30735af8dfef716145e635dc9efd13a49b14d6c3
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 4143703704a3b6a91f1fee7c30735af8dfef716145e635dc9efd13a49b14d6c3:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
4143703704a3b6a91f1fee7c30735af8dfef716145e635dc9efd13a49b14d6c3
Status:
ERROR
Block height:
40032662
Block id:
a74724d6782bdb7311839441dd9f5e870cf77f8c1a9f2ce64a2916ec370efdd0
Timestamp:
Monday 31 October 2022 at 06:47:46 UTC
()
Proposer:
Authorizers:
Gas used:
46