Flow price: --
bf3536a6995a469269c42a74160b77a71e6d4a4fead688695739a40eb0f2bbeb

Transaction

Hash: bf3536a6995a469269c42a74160b77a71e6d4a4fead688695739a40eb0f2bbeb
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> bf3536a6995a469269c42a74160b77a71e6d4a4fead688695739a40eb0f2bbeb: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:
bf3536a6995a469269c42a74160b77a71e6d4a4fead688695739a40eb0f2bbeb
Status:
ERROR
Block height:
40059302
Block id:
e9db11a9edd8b1e03d453eb913889d0f76007c9db741fa7a0875ce66ae277e70
Timestamp:
Monday 31 October 2022 at 17:32:48 UTC
()
Proposer:
Authorizers:
Gas used:
50