Flow price: --
906d38f1906f37453439dc8e8bca3573bfdc247e21f683c1c688a66b14e040ce

Transaction

Hash: 906d38f1906f37453439dc8e8bca3573bfdc247e21f683c1c688a66b14e040ce
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 906d38f1906f37453439dc8e8bca3573bfdc247e21f683c1c688a66b14e040ce: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:
906d38f1906f37453439dc8e8bca3573bfdc247e21f683c1c688a66b14e040ce
Status:
ERROR
Block height:
40059498
Block id:
11caf78ab9515214cae7c90092ba2c5b16169d5baa152b16f892e482ed35dc8c
Timestamp:
Monday 31 October 2022 at 17:37:22 UTC
()
Proposer:
Authorizers:
Gas used:
65