Flow price: --
a4b73324e84151ed9a7a5047cd8733e7c08084e4e4d4fce179119d53056cfca2

Transaction

Hash: a4b73324e84151ed9a7a5047cd8733e7c08084e4e4d4fce179119d53056cfca2
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a4b73324e84151ed9a7a5047cd8733e7c08084e4e4d4fce179119d53056cfca2:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a4b73324e84151ed9a7a5047cd8733e7c08084e4e4d4fce179119d53056cfca2
Status:
ERROR
Block height:
40041796
Block id:
e7ae988e5df9f4762718d2893f78bc4c637568f3439ec764351fe70bd04d6d11
Timestamp:
Monday 31 October 2022 at 10:27:54 UTC
()
Proposer:
Authorizers:
Gas used:
50