Flow price: --
500505e487dc18782dd8580ced6f8dab32a056e80a56c6e2e050014230dd7aea

Transaction

Hash: 500505e487dc18782dd8580ced6f8dab32a056e80a56c6e2e050014230dd7aea
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 500505e487dc18782dd8580ced6f8dab32a056e80a56c6e2e050014230dd7aea: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:
500505e487dc18782dd8580ced6f8dab32a056e80a56c6e2e050014230dd7aea
Status:
ERROR
Block height:
40034924
Block id:
91d93ed97dd8977e6e0b801713ee47dc5e5fa08abf3c279d1e3f2b9a34d366bc
Timestamp:
Monday 31 October 2022 at 07:41:47 UTC
()
Proposer:
Authorizers:
Gas used:
47