Flow price: --
91378b6a305480d0d0e0d6941bf4b4f0bebeb9a8e458eb1600b90e7334e2af26

Transaction

Hash: 91378b6a305480d0d0e0d6941bf4b4f0bebeb9a8e458eb1600b90e7334e2af26
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 91378b6a305480d0d0e0d6941bf4b4f0bebeb9a8e458eb1600b90e7334e2af26:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
91378b6a305480d0d0e0d6941bf4b4f0bebeb9a8e458eb1600b90e7334e2af26
Status:
ERROR
Block height:
40117582
Block id:
248dd10b4c2ebd83cbba4a4c4affc0851d12639b953d75a7b7f401a0dbe5e7b0
Timestamp:
Tuesday 1 November 2022 at 17:02:17 UTC
()
Proposer:
Authorizers:
Gas used:
49