Flow price: --
659f704072f080f8fb4c97c2a1c7f7a7f98f626be190130f97dc98f3333337f8

Transaction

Hash: 659f704072f080f8fb4c97c2a1c7f7a7f98f626be190130f97dc98f3333337f8
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 659f704072f080f8fb4c97c2a1c7f7a7f98f626be190130f97dc98f3333337f8:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
659f704072f080f8fb4c97c2a1c7f7a7f98f626be190130f97dc98f3333337f8
Status:
ERROR
Block height:
39975676
Block id:
54694adadcd3a4cd0e57e9fe73653fa069b0f82acbe9795841be50371b530351
Timestamp:
Sunday 30 October 2022 at 08:02:06 UTC
()
Proposer:
Authorizers:
Gas used:
50