Flow price: --
726fb811129f0246729d264cde1a8caac2be34d6b1e5f3aea6efaad5f3149b21

Transaction

Hash: 726fb811129f0246729d264cde1a8caac2be34d6b1e5f3aea6efaad5f3149b21
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 726fb811129f0246729d264cde1a8caac2be34d6b1e5f3aea6efaad5f3149b21:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
726fb811129f0246729d264cde1a8caac2be34d6b1e5f3aea6efaad5f3149b21
Status:
ERROR
Block height:
39803223
Block id:
3156d50b3fc335d69536ae516f8521c6f8094e6ec3f1cd35224957a3ac860c9f
Timestamp:
Thursday 27 October 2022 at 10:52:33 UTC
()
Proposer:
Authorizers:
Gas used:
49