Flow price: --
604527a07aa2b22cc8473075d863896a1b339fff7f3d18341f3cef38c31afa8e

Transaction

Hash: 604527a07aa2b22cc8473075d863896a1b339fff7f3d18341f3cef38c31afa8e
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 604527a07aa2b22cc8473075d863896a1b339fff7f3d18341f3cef38c31afa8e: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:
604527a07aa2b22cc8473075d863896a1b339fff7f3d18341f3cef38c31afa8e
Status:
ERROR
Block height:
40114539
Block id:
2c18ff9dd686204c061d1148325e4fc03a34d333904111258f3f471cf149aadd
Timestamp:
Tuesday 1 November 2022 at 15:48:07 UTC
()
Proposer:
Authorizers:
Gas used:
47