Flow price: --
2770017ab8da72a558967ece2acbc4916fd5a3a5e68c672a9eb2467d35cffe35

Transaction

Hash: 2770017ab8da72a558967ece2acbc4916fd5a3a5e68c672a9eb2467d35cffe35
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 2770017ab8da72a558967ece2acbc4916fd5a3a5e68c672a9eb2467d35cffe35:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
2770017ab8da72a558967ece2acbc4916fd5a3a5e68c672a9eb2467d35cffe35
Status:
ERROR
Block height:
40101249
Block id:
cbd3e1ae1317b0d6c8d0add2478c0b31b5be40d4021a15254b217c362501100e
Timestamp:
Tuesday 1 November 2022 at 10:25:19 UTC
()
Proposer:
Authorizers:
Gas used:
46