Flow price: --
a654fb7a045c4c516d995b37b9e734d7ad4f6514189f5a06d983e902ac3534bb

Transaction

Hash: a654fb7a045c4c516d995b37b9e734d7ad4f6514189f5a06d983e902ac3534bb
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a654fb7a045c4c516d995b37b9e734d7ad4f6514189f5a06d983e902ac3534bb: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:
a654fb7a045c4c516d995b37b9e734d7ad4f6514189f5a06d983e902ac3534bb
Status:
ERROR
Block height:
39842928
Block id:
b416be1baca485a46f9bacb6215f45ff0249cefbd25818cb30cf3e9b62080339
Timestamp:
Friday 28 October 2022 at 02:54:55 UTC
()
Proposer:
Authorizers:
Gas used:
45