Flow price: --
f503b4c15a8afcc438293b28b14308dfc1f232c0dc101ab486623012fbaf107b

Transaction

Hash: f503b4c15a8afcc438293b28b14308dfc1f232c0dc101ab486623012fbaf107b
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f503b4c15a8afcc438293b28b14308dfc1f232c0dc101ab486623012fbaf107b: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:
f503b4c15a8afcc438293b28b14308dfc1f232c0dc101ab486623012fbaf107b
Status:
ERROR
Block height:
40066221
Block id:
81ec02fd9787cfaba7684b3d8362accf3730c46012980cd2ab27166ffc0f32ab
Timestamp:
Monday 31 October 2022 at 20:19:55 UTC
()
Proposer:
Authorizers:
Gas used:
46