Flow price: --
5b214ab6d2699aa8582a991a34bc42b13914f6ce71bd4210d51a047aa9331be9

Transaction

Hash: 5b214ab6d2699aa8582a991a34bc42b13914f6ce71bd4210d51a047aa9331be9
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 5b214ab6d2699aa8582a991a34bc42b13914f6ce71bd4210d51a047aa9331be9:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
5b214ab6d2699aa8582a991a34bc42b13914f6ce71bd4210d51a047aa9331be9
Status:
ERROR
Block height:
40066856
Block id:
607c5a556a6b4d9de7ef4c233ba51c720dd45a0828885904f055df2df06ef0f3
Timestamp:
Monday 31 October 2022 at 20:34:53 UTC
()
Proposer:
Authorizers:
Gas used:
47