Flow price: --
d601e134433a81030c69a69651c39e133bf2434dd1721fd890a32d5a440f030c

Transaction

Hash: d601e134433a81030c69a69651c39e133bf2434dd1721fd890a32d5a440f030c
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d601e134433a81030c69a69651c39e133bf2434dd1721fd890a32d5a440f030c: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:
d601e134433a81030c69a69651c39e133bf2434dd1721fd890a32d5a440f030c
Status:
ERROR
Block height:
39874404
Block id:
41457b041c859931a1c522542a6c5ca9320d3c110b3c5d931559e777cb4c5696
Timestamp:
Friday 28 October 2022 at 15:35:42 UTC
()
Proposer:
Authorizers:
Gas used:
47