Flow price: --
7c102afe744e00ca58b7b8989e883fdb00b0610e0d04777e8d6ea6a3e6cad1e1

Transaction

Hash: 7c102afe744e00ca58b7b8989e883fdb00b0610e0d04777e8d6ea6a3e6cad1e1
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 7c102afe744e00ca58b7b8989e883fdb00b0610e0d04777e8d6ea6a3e6cad1e1:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
7c102afe744e00ca58b7b8989e883fdb00b0610e0d04777e8d6ea6a3e6cad1e1
Status:
ERROR
Block height:
40085470
Block id:
a896149472229094bda9ab9ee68256fab93f00536004067406ac4eb6a20eb6ce
Timestamp:
Tuesday 1 November 2022 at 04:00:51 UTC
()
Proposer:
Authorizers:
Gas used:
50