Flow price: --
c47afdb48663c3e291e7a824b5824ea139a6f79574a3c9f37d063f7ee4cf12f6

Transaction

Hash: c47afdb48663c3e291e7a824b5824ea139a6f79574a3c9f37d063f7ee4cf12f6
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c47afdb48663c3e291e7a824b5824ea139a6f79574a3c9f37d063f7ee4cf12f6:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
c47afdb48663c3e291e7a824b5824ea139a6f79574a3c9f37d063f7ee4cf12f6
Status:
ERROR
Block height:
39972168
Block id:
b1e031e5bb8a54ed2444aaa29bc312c79378496ae9058b001ae8c3be29509778
Timestamp:
Sunday 30 October 2022 at 06:37:47 UTC
()
Proposer:
Authorizers:
Gas used:
46