Flow price: --
99f70da5bb914a98f1f2888a53d120db2142218d13237eaaea8a80eefc250bd7

Transaction

Hash: 99f70da5bb914a98f1f2888a53d120db2142218d13237eaaea8a80eefc250bd7
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 99f70da5bb914a98f1f2888a53d120db2142218d13237eaaea8a80eefc250bd7:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
99f70da5bb914a98f1f2888a53d120db2142218d13237eaaea8a80eefc250bd7
Status:
ERROR
Block height:
40004004
Block id:
20862453e334b7ed06adc3ee9d93634ad60bf20534ce9f4a8d958e527bf00b8a
Timestamp:
Sunday 30 October 2022 at 19:22:00 UTC
()
Proposer:
Authorizers:
Gas used:
49