Flow price: --
a167271583eca5a47b2e505d40a36e30f25acecbfd217c25a9a4d9361a82d1b3

Transaction

Hash: a167271583eca5a47b2e505d40a36e30f25acecbfd217c25a9a4d9361a82d1b3
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a167271583eca5a47b2e505d40a36e30f25acecbfd217c25a9a4d9361a82d1b3:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a167271583eca5a47b2e505d40a36e30f25acecbfd217c25a9a4d9361a82d1b3
Status:
ERROR
Block height:
39801191
Block id:
aa73159818d228d0a227d5148bcf31fb06795883248564f2968415451c32f2c0
Timestamp:
Thursday 27 October 2022 at 10:03:48 UTC
()
Proposer:
Authorizers:
Gas used:
47