Flow price: --
b8dffc8f4b2770f31963ac29fdb1d3aece9fb641f823b28980d78f6766e1b369

Transaction

Hash: b8dffc8f4b2770f31963ac29fdb1d3aece9fb641f823b28980d78f6766e1b369
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b8dffc8f4b2770f31963ac29fdb1d3aece9fb641f823b28980d78f6766e1b369:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b8dffc8f4b2770f31963ac29fdb1d3aece9fb641f823b28980d78f6766e1b369
Status:
ERROR
Block height:
40104181
Block id:
cd4e8715b0c3e76a3d0049f5a097cf119b03fa38ea3845554055ba675bca59d2
Timestamp:
Tuesday 1 November 2022 at 11:36:41 UTC
()
Proposer:
Authorizers:
Gas used:
47