Flow price: --
a8b8e781bbd5ee36a676ea6c1dc78251ff7dde7a78e3d5f3684a4a88b2f6f072

Transaction

Hash: a8b8e781bbd5ee36a676ea6c1dc78251ff7dde7a78e3d5f3684a4a88b2f6f072
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a8b8e781bbd5ee36a676ea6c1dc78251ff7dde7a78e3d5f3684a4a88b2f6f072:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a8b8e781bbd5ee36a676ea6c1dc78251ff7dde7a78e3d5f3684a4a88b2f6f072
Status:
ERROR
Block height:
40119104
Block id:
0885322b9f8a7b3ece274980448c35a59622e39dc2646953f01697587b91c0f2
Timestamp:
Tuesday 1 November 2022 at 17:39:30 UTC
()
Proposer:
Authorizers:
Gas used:
47