Flow price: --
b20469e42dd9ad5d5171fed61ee653713bccd90be3a6b0855d14433746f34e03

Transaction

Hash: b20469e42dd9ad5d5171fed61ee653713bccd90be3a6b0855d14433746f34e03
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b20469e42dd9ad5d5171fed61ee653713bccd90be3a6b0855d14433746f34e03:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b20469e42dd9ad5d5171fed61ee653713bccd90be3a6b0855d14433746f34e03
Status:
ERROR
Block height:
40170418
Block id:
fcdbd1ac87692e11253bdff298962a0eea5347184a800137ed7fdea32baf62e7
Timestamp:
Wednesday 2 November 2022 at 14:30:40 UTC
()
Proposer:
Authorizers:
Gas used:
47