Flow price: --
d1548af9260cc85f88e916e1d7623e2d7efea4364199f1311b69215dc5d50fd4

Transaction

Hash: d1548af9260cc85f88e916e1d7623e2d7efea4364199f1311b69215dc5d50fd4
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d1548af9260cc85f88e916e1d7623e2d7efea4364199f1311b69215dc5d50fd4:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
d1548af9260cc85f88e916e1d7623e2d7efea4364199f1311b69215dc5d50fd4
Status:
ERROR
Block height:
40156037
Block id:
72f014aad52afdf6680e16e6500452d29fd0f995e03acb6e23a64d972f032c33
Timestamp:
Wednesday 2 November 2022 at 08:41:54 UTC
()
Proposer:
Authorizers:
Gas used:
46