Flow price: --
a21d48a6d50bb4069029a96a2965cd828e5c2efacfbebd1617b44b670e7b6879

Transaction

Hash: a21d48a6d50bb4069029a96a2965cd828e5c2efacfbebd1617b44b670e7b6879
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a21d48a6d50bb4069029a96a2965cd828e5c2efacfbebd1617b44b670e7b6879:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a21d48a6d50bb4069029a96a2965cd828e5c2efacfbebd1617b44b670e7b6879
Status:
ERROR
Block height:
40149993
Block id:
3c68cf520607d2450a4631ee728b09a4266e7de4763ad880e91ce8b6513741b2
Timestamp:
Wednesday 2 November 2022 at 06:13:55 UTC
()
Proposer:
Authorizers:
Gas used:
47