Flow price: --
f4ab170fb3a5c710818b5a3977676b302e09559733e18b9ce5930ad4fc75fa04

Transaction

Hash: f4ab170fb3a5c710818b5a3977676b302e09559733e18b9ce5930ad4fc75fa04
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f4ab170fb3a5c710818b5a3977676b302e09559733e18b9ce5930ad4fc75fa04:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f4ab170fb3a5c710818b5a3977676b302e09559733e18b9ce5930ad4fc75fa04
Status:
ERROR
Block height:
39881005
Block id:
17c940e4b39b7a7e2189cde9c7206cfcf4e55b5ade47ff8503b79b66a98ec9bc
Timestamp:
Friday 28 October 2022 at 18:14:00 UTC
()
Proposer:
Authorizers:
Gas used:
50