Flow price: --
65efb9ef51be3964a5519fa0c5e72874ae380eed67c538e1a14ea5441152b798

Transaction

Hash: 65efb9ef51be3964a5519fa0c5e72874ae380eed67c538e1a14ea5441152b798
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 65efb9ef51be3964a5519fa0c5e72874ae380eed67c538e1a14ea5441152b798:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
65efb9ef51be3964a5519fa0c5e72874ae380eed67c538e1a14ea5441152b798
Status:
ERROR
Block height:
39871565
Block id:
fa1a216a7c9ceb06c082d79dd35d754f64ff994a36d80d3be88099206aea4eda
Timestamp:
Friday 28 October 2022 at 14:27:36 UTC
()
Proposer:
Authorizers:
Gas used:
58