Flow price: --
f3f8b92179997bd0731dbee0cfcf652208d072b91f44e2b70b49aae94efe7500

Transaction

Hash: f3f8b92179997bd0731dbee0cfcf652208d072b91f44e2b70b49aae94efe7500
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f3f8b92179997bd0731dbee0cfcf652208d072b91f44e2b70b49aae94efe7500:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f3f8b92179997bd0731dbee0cfcf652208d072b91f44e2b70b49aae94efe7500
Status:
ERROR
Block height:
39754523
Block id:
153e61e3c42f4a04aa304f0b59240bb0fb0f2dd6d5b30eab2015ee08ffec79ad
Timestamp:
Wednesday 26 October 2022 at 15:15:48 UTC
()
Proposer:
Authorizers:
Gas used:
56