Flow price: --
4772663e9015f0e5793638011f74ab60c49ea1cdbfd8cf31012e20531ba99464

Transaction

Hash: 4772663e9015f0e5793638011f74ab60c49ea1cdbfd8cf31012e20531ba99464
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 4772663e9015f0e5793638011f74ab60c49ea1cdbfd8cf31012e20531ba99464:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
4772663e9015f0e5793638011f74ab60c49ea1cdbfd8cf31012e20531ba99464
Status:
ERROR
Block height:
39939598
Block id:
b8c73d35a623669a25639afbca5d437c8590df1d705160b522abc75f76dece6f
Timestamp:
Saturday 29 October 2022 at 17:42:19 UTC
()
Proposer:
Authorizers:
Gas used:
46