Flow price: --
18b450e41a5f4e44e8d08eb165ac99cd76a8b1814183eb0a8a90cdba4e5893d8

Transaction

Hash: 18b450e41a5f4e44e8d08eb165ac99cd76a8b1814183eb0a8a90cdba4e5893d8
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 18b450e41a5f4e44e8d08eb165ac99cd76a8b1814183eb0a8a90cdba4e5893d8:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
18b450e41a5f4e44e8d08eb165ac99cd76a8b1814183eb0a8a90cdba4e5893d8
Status:
ERROR
Block height:
39789897
Block id:
ed1b552c1041bbebd3b15f08205758e3b20164a73c7c0ef3f238476535c33b79
Timestamp:
Thursday 27 October 2022 at 05:30:37 UTC
()
Proposer:
Authorizers:
Gas used:
64