Flow price: --
f85172848b315a379c46c4b16fe299bdc68eb065c45dfd12a6d8a47d139c3315

Transaction

Hash: f85172848b315a379c46c4b16fe299bdc68eb065c45dfd12a6d8a47d139c3315
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f85172848b315a379c46c4b16fe299bdc68eb065c45dfd12a6d8a47d139c3315:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f85172848b315a379c46c4b16fe299bdc68eb065c45dfd12a6d8a47d139c3315
Status:
ERROR
Block height:
39854408
Block id:
d8dfa995af547faf6ae035b7d6c143f0b1da1ae908ad8754b92e9cda48a5421c
Timestamp:
Friday 28 October 2022 at 07:33:50 UTC
()
Proposer:
Authorizers:
Gas used:
60