Flow price: --
d1675df80f5c180b0059891376a72d0d8ff59a3fcaaaa99e1e79b417ccb40cd2

Transaction

Hash: d1675df80f5c180b0059891376a72d0d8ff59a3fcaaaa99e1e79b417ccb40cd2
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d1675df80f5c180b0059891376a72d0d8ff59a3fcaaaa99e1e79b417ccb40cd2:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
d1675df80f5c180b0059891376a72d0d8ff59a3fcaaaa99e1e79b417ccb40cd2
Status:
ERROR
Block height:
40044232
Block id:
7c2940b066e2141481b818e89a033e96a06534ca78ed1bea40a56f3e6fe9eb20
Timestamp:
Monday 31 October 2022 at 11:26:37 UTC
()
Proposer:
Authorizers:
Gas used:
50