Flow price: --
d4795e98e777fe178dc8b7bed0c057e21a094a250ce3c78e2e3ade24552bf321

Transaction

Hash: d4795e98e777fe178dc8b7bed0c057e21a094a250ce3c78e2e3ade24552bf321
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d4795e98e777fe178dc8b7bed0c057e21a094a250ce3c78e2e3ade24552bf321:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
d4795e98e777fe178dc8b7bed0c057e21a094a250ce3c78e2e3ade24552bf321
Status:
ERROR
Block height:
40126741
Block id:
f3559a63f72cced7b1aec14fbe6fdbba254a14a896568d244ab191462abd391e
Timestamp:
Tuesday 1 November 2022 at 20:45:57 UTC
()
Proposer:
Authorizers:
Gas used:
47