Flow price: --
671fdada5bafb8a4f6330032043ee05955f4f7bb8cd62232f3937b669e8fcd13

Transaction

Hash: 671fdada5bafb8a4f6330032043ee05955f4f7bb8cd62232f3937b669e8fcd13
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 671fdada5bafb8a4f6330032043ee05955f4f7bb8cd62232f3937b669e8fcd13:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
671fdada5bafb8a4f6330032043ee05955f4f7bb8cd62232f3937b669e8fcd13
Status:
ERROR
Block height:
39839872
Block id:
07c0e760b2c97da912c33f20f37cd4956f978aa7b698f349fea12daa0c203487
Timestamp:
Friday 28 October 2022 at 01:41:22 UTC
()
Proposer:
Authorizers:
Gas used:
46