Flow price: --
d8549d88531e5078cfa58ffdd784175a84f50d6987f4efa3f2cd72d3d7d85bc0

Transaction

Hash: d8549d88531e5078cfa58ffdd784175a84f50d6987f4efa3f2cd72d3d7d85bc0
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction invocation failed when executing transaction: [Error Code: 1101] cadence runtime error: Execution failed:
  --> d8549d88531e5078cfa58ffdd784175a84f50d6987f4efa3f2cd72d3d7d85bc0:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:24


Hash:
d8549d88531e5078cfa58ffdd784175a84f50d6987f4efa3f2cd72d3d7d85bc0
Status:
ERROR
Block height:
40812402
Block id:
6d58c4898dfd7792ff354c899156f556da554cbaf14591773c8f48c28f201be3
Timestamp:
Sunday 13 November 2022 at 09:09:47 UTC
()
Proposer:
Authorizers:
Gas used:
25