Flow price: --
87f6519e637bd134feee13be990e786097f0855333500d54c47e0e6a2e720654

Transaction

Hash: 87f6519e637bd134feee13be990e786097f0855333500d54c47e0e6a2e720654
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 87f6519e637bd134feee13be990e786097f0855333500d54c47e0e6a2e720654:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
87f6519e637bd134feee13be990e786097f0855333500d54c47e0e6a2e720654
Status:
ERROR
Block height:
39990319
Block id:
cad11fe1aba7bf1a8d3556017d580938b9673d80e908b11ac8d8872273e664e0
Timestamp:
Sunday 30 October 2022 at 13:53:21 UTC
()
Proposer:
Authorizers:
Gas used:
47