Flow price: --
789dce809a1d0c654fd40f97b04a5e9da3b6f2fee7fc7be3be158dd0b657a9f8

Transaction

Hash: 789dce809a1d0c654fd40f97b04a5e9da3b6f2fee7fc7be3be158dd0b657a9f8
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 789dce809a1d0c654fd40f97b04a5e9da3b6f2fee7fc7be3be158dd0b657a9f8:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
789dce809a1d0c654fd40f97b04a5e9da3b6f2fee7fc7be3be158dd0b657a9f8
Status:
ERROR
Block height:
40155602
Block id:
61c76580d6b20510728633a6dd0f0f9be48144edf416e7b727ec75c70fa6bf3e
Timestamp:
Wednesday 2 November 2022 at 08:31:11 UTC
()
Proposer:
Authorizers:
Gas used:
65