Flow price: --
db61bb16c7aa221742d558023e5d4138076a92b62a4c6a8691f6cc1f2b89108c

Transaction

Hash: db61bb16c7aa221742d558023e5d4138076a92b62a4c6a8691f6cc1f2b89108c
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> db61bb16c7aa221742d558023e5d4138076a92b62a4c6a8691f6cc1f2b89108c: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:
db61bb16c7aa221742d558023e5d4138076a92b62a4c6a8691f6cc1f2b89108c
Status:
ERROR
Block height:
39902689
Block id:
4b20fb9a721819a4cf3fe97ece3526387ebe6475eecca71454e63ce0afd70f77
Timestamp:
Saturday 29 October 2022 at 02:50:02 UTC
()
Proposer:
Authorizers:
Gas used:
47