Flow price: --
a9617eec967c9e707aac62d3e11678cbb3720670162e48a05a91c0a8a3cf78cc

Transaction

Hash: a9617eec967c9e707aac62d3e11678cbb3720670162e48a05a91c0a8a3cf78cc
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a9617eec967c9e707aac62d3e11678cbb3720670162e48a05a91c0a8a3cf78cc: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:
a9617eec967c9e707aac62d3e11678cbb3720670162e48a05a91c0a8a3cf78cc
Status:
ERROR
Block height:
39848494
Block id:
507237cf19666c0972d95b77e4b90501cbbd22639da0f4ab651752bf432116dd
Timestamp:
Friday 28 October 2022 at 05:09:13 UTC
()
Proposer:
Authorizers:
Gas used:
47