Flow price: --
4a38259d5d66f9dfc31f9d5c23b8e0b7f75bdf8ea210338caa66cf1080dd5fc3

Transaction

Hash: 4a38259d5d66f9dfc31f9d5c23b8e0b7f75bdf8ea210338caa66cf1080dd5fc3
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 4a38259d5d66f9dfc31f9d5c23b8e0b7f75bdf8ea210338caa66cf1080dd5fc3:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
4a38259d5d66f9dfc31f9d5c23b8e0b7f75bdf8ea210338caa66cf1080dd5fc3
Status:
ERROR
Block height:
40063228
Block id:
b6659fcee9496db3efaa581a1e8269672aaad03b3427977fcce8948ec6e85f16
Timestamp:
Monday 31 October 2022 at 19:07:34 UTC
()
Proposer:
Authorizers:
Gas used:
50