Flow price: --
a130461411799c44c8193f7a1f9f2460896489fec257e889d5f6ee6e1ef0ce7c

Transaction

Hash: a130461411799c44c8193f7a1f9f2460896489fec257e889d5f6ee6e1ef0ce7c
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a130461411799c44c8193f7a1f9f2460896489fec257e889d5f6ee6e1ef0ce7c: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:
a130461411799c44c8193f7a1f9f2460896489fec257e889d5f6ee6e1ef0ce7c
Status:
ERROR
Block height:
39977439
Block id:
4d99d4ca6c386bda170402bd946bbfe50303172f21e201cb766ecbdd55b4dc36
Timestamp:
Sunday 30 October 2022 at 08:44:20 UTC
()
Proposer:
Authorizers:
Gas used:
47