Flow price: --
f877f16d8f1acb30a0c025ecc5c9e792bab5d3944e8fc108f62dd45c012e7c78

Transaction

Hash: f877f16d8f1acb30a0c025ecc5c9e792bab5d3944e8fc108f62dd45c012e7c78
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f877f16d8f1acb30a0c025ecc5c9e792bab5d3944e8fc108f62dd45c012e7c78:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f877f16d8f1acb30a0c025ecc5c9e792bab5d3944e8fc108f62dd45c012e7c78
Status:
ERROR
Block height:
39864189
Block id:
f17663c55c2c5ba15790ddc713a790aa27803892da9369c1ef2f7656d4c70073
Timestamp:
Friday 28 October 2022 at 11:30:16 UTC
()
Proposer:
Authorizers:
Gas used:
47