Flow price: --
8886bb3b74793538e4de47a6972488f6a9a27f47c61c05cafd5c01dce9d40fe6

Transaction

Hash: 8886bb3b74793538e4de47a6972488f6a9a27f47c61c05cafd5c01dce9d40fe6
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 8886bb3b74793538e4de47a6972488f6a9a27f47c61c05cafd5c01dce9d40fe6:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
8886bb3b74793538e4de47a6972488f6a9a27f47c61c05cafd5c01dce9d40fe6
Status:
ERROR
Block height:
40092472
Block id:
9d5acd94317dfb839195907558d7c71f9ef2627a6ffac706bc89aef7d33449a6
Timestamp:
Tuesday 1 November 2022 at 06:52:04 UTC
()
Proposer:
Authorizers:
Gas used:
49