Flow price: --
c517e71f0656258ff436b1122abc58aff6af6ccb060a459c9a8b7543dfefc6fd

Transaction

Hash: c517e71f0656258ff436b1122abc58aff6af6ccb060a459c9a8b7543dfefc6fd
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c517e71f0656258ff436b1122abc58aff6af6ccb060a459c9a8b7543dfefc6fd: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:
c517e71f0656258ff436b1122abc58aff6af6ccb060a459c9a8b7543dfefc6fd
Status:
ERROR
Block height:
39856494
Block id:
b1e1054a5529dff0ce72435dfa9b839a3b85d203a891c6949f3c82fe416a4095
Timestamp:
Friday 28 October 2022 at 08:24:41 UTC
()
Proposer:
Authorizers:
Gas used:
46