Flow price: --
a673dcef2a49215de411e6a119fa0a00d2f71debe7a6e469c75e847f25813820

Transaction

Hash: a673dcef2a49215de411e6a119fa0a00d2f71debe7a6e469c75e847f25813820
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a673dcef2a49215de411e6a119fa0a00d2f71debe7a6e469c75e847f25813820:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a673dcef2a49215de411e6a119fa0a00d2f71debe7a6e469c75e847f25813820
Status:
ERROR
Block height:
40057111
Block id:
1db8bf7bf52f9d6a0f1265cababed9533fcaf69ce22118b959255b7192defefe
Timestamp:
Monday 31 October 2022 at 16:39:37 UTC
()
Proposer:
Authorizers:
Gas used:
47