Flow price: --
a0ab5b0be9edfad079e1c6780c0a9e173aaba68b176553a346357aa8f1ab7781

Transaction

Hash: a0ab5b0be9edfad079e1c6780c0a9e173aaba68b176553a346357aa8f1ab7781
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a0ab5b0be9edfad079e1c6780c0a9e173aaba68b176553a346357aa8f1ab7781:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a0ab5b0be9edfad079e1c6780c0a9e173aaba68b176553a346357aa8f1ab7781
Status:
ERROR
Block height:
40056947
Block id:
2ae616adde0ac1e03566153123aede479caa9c2298954055ea66352345147384
Timestamp:
Monday 31 October 2022 at 16:35:32 UTC
()
Proposer:
Authorizers:
Gas used:
49