Flow price: --
807b146b5150e1d6692d31c7e7656a633d34a4c6eb9879a0b6d3e3f835c9e423

Transaction

Hash: 807b146b5150e1d6692d31c7e7656a633d34a4c6eb9879a0b6d3e3f835c9e423
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 807b146b5150e1d6692d31c7e7656a633d34a4c6eb9879a0b6d3e3f835c9e423:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
807b146b5150e1d6692d31c7e7656a633d34a4c6eb9879a0b6d3e3f835c9e423
Status:
ERROR
Block height:
40077232
Block id:
1b54cbc295e5bc1d09a0b3e8dbc6a1fa87d6797963ccbf1a6369a0140fe42180
Timestamp:
Tuesday 1 November 2022 at 00:41:06 UTC
()
Proposer:
Authorizers:
Gas used:
47