Flow price: --
a591904915b8cc30875463807d66eb968cff20f822f1f1b4e9ef47d7dd51e497

Transaction

Hash: a591904915b8cc30875463807d66eb968cff20f822f1f1b4e9ef47d7dd51e497
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a591904915b8cc30875463807d66eb968cff20f822f1f1b4e9ef47d7dd51e497:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a591904915b8cc30875463807d66eb968cff20f822f1f1b4e9ef47d7dd51e497
Status:
ERROR
Block height:
39991545
Block id:
9659eafb274a7cba4ce870fb4887b0f00464ca5664ce9ddf5265e06087b7c521
Timestamp:
Sunday 30 October 2022 at 14:22:31 UTC
()
Proposer:
Authorizers:
Gas used:
48