Flow price: --
302a91c3f9c9094141db8f04b6137b2a21193d84fabe68aaa58dd5a173b8d679

Transaction

Hash: 302a91c3f9c9094141db8f04b6137b2a21193d84fabe68aaa58dd5a173b8d679
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 302a91c3f9c9094141db8f04b6137b2a21193d84fabe68aaa58dd5a173b8d679:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
302a91c3f9c9094141db8f04b6137b2a21193d84fabe68aaa58dd5a173b8d679
Status:
ERROR
Block height:
40032698
Block id:
649e95f2b7df9923f1a7ca977c90036e384adaff065df3c3b3c39e50e830ef03
Timestamp:
Monday 31 October 2022 at 06:48:42 UTC
()
Proposer:
Authorizers:
Gas used:
47