Flow price: --
59c439d4271a6d8572118e82d0e35acdc20f43d4b5f121a964a2ccec2b079415

Transaction

Hash: 59c439d4271a6d8572118e82d0e35acdc20f43d4b5f121a964a2ccec2b079415
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 59c439d4271a6d8572118e82d0e35acdc20f43d4b5f121a964a2ccec2b079415:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
59c439d4271a6d8572118e82d0e35acdc20f43d4b5f121a964a2ccec2b079415
Status:
ERROR
Block height:
40151152
Block id:
6bf357d113c06ea32df4ca2612fec4119de221444ab62e40ee7c5943980e5c03
Timestamp:
Wednesday 2 November 2022 at 06:42:33 UTC
()
Proposer:
Authorizers:
Gas used:
50