Flow price: --
02eb31c0f710105f3dc9e30fb82b9d9bf2760e96540630e98da54a46eaedc895

Transaction

Hash: 02eb31c0f710105f3dc9e30fb82b9d9bf2760e96540630e98da54a46eaedc895
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 02eb31c0f710105f3dc9e30fb82b9d9bf2760e96540630e98da54a46eaedc895:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
02eb31c0f710105f3dc9e30fb82b9d9bf2760e96540630e98da54a46eaedc895
Status:
ERROR
Block height:
40036688
Block id:
98b47c307e5c4c9fa6df724b65b99c3e1b66830a20b8621477581f57bbf2c880
Timestamp:
Monday 31 October 2022 at 08:23:56 UTC
()
Proposer:
Authorizers:
Gas used:
48