Flow price: --
9f349e87993d74ae0d7e42408a7d2b6cacff80a238621c98318269e5c4f09997

Transaction

Hash: 9f349e87993d74ae0d7e42408a7d2b6cacff80a238621c98318269e5c4f09997
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9f349e87993d74ae0d7e42408a7d2b6cacff80a238621c98318269e5c4f09997:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9f349e87993d74ae0d7e42408a7d2b6cacff80a238621c98318269e5c4f09997
Status:
ERROR
Block height:
40101782
Block id:
246b6d21488b9296951697c6ca111087ff2480f95dee7513614a6166658b4ac9
Timestamp:
Tuesday 1 November 2022 at 10:38:15 UTC
()
Proposer:
Authorizers:
Gas used:
48