Flow price: --
19f5d26a23fd16e8661df30bba7c838f99a26f2406d10ea1916745421e30f564

Transaction

Hash: 19f5d26a23fd16e8661df30bba7c838f99a26f2406d10ea1916745421e30f564
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 19f5d26a23fd16e8661df30bba7c838f99a26f2406d10ea1916745421e30f564:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
19f5d26a23fd16e8661df30bba7c838f99a26f2406d10ea1916745421e30f564
Status:
ERROR
Block height:
39741573
Block id:
4514f2f32bcf6ddf9c736684167c16283388184d9b6765aa862412fad52fa892
Timestamp:
Wednesday 26 October 2022 at 10:02:42 UTC
()
Proposer:
Authorizers:
Gas used:
49