Flow price: --
5871d34a1c75c3104bb241755b28ad2884bcc44f35396a2ea80871e6ad77c379

Transaction

Hash: 5871d34a1c75c3104bb241755b28ad2884bcc44f35396a2ea80871e6ad77c379
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 5871d34a1c75c3104bb241755b28ad2884bcc44f35396a2ea80871e6ad77c379:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
5871d34a1c75c3104bb241755b28ad2884bcc44f35396a2ea80871e6ad77c379
Status:
ERROR
Block height:
40047341
Block id:
71820d7a32d3394d462c61da03fae0cc1005d698992bc46057e1f46eff58e3f5
Timestamp:
Monday 31 October 2022 at 12:42:02 UTC
()
Proposer:
Authorizers:
Gas used:
50