Flow price: --
230bb7e0e7f7e4e5ea650a3e6c005f6a1718438bd5f0e3b79d42a30bd8378596

Transaction

Hash: 230bb7e0e7f7e4e5ea650a3e6c005f6a1718438bd5f0e3b79d42a30bd8378596
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 230bb7e0e7f7e4e5ea650a3e6c005f6a1718438bd5f0e3b79d42a30bd8378596:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
230bb7e0e7f7e4e5ea650a3e6c005f6a1718438bd5f0e3b79d42a30bd8378596
Status:
ERROR
Block height:
40105259
Block id:
987dbe1774be43f41e409b4f2766aee72e208a17876938fdc72847f403530deb
Timestamp:
Tuesday 1 November 2022 at 12:02:59 UTC
()
Proposer:
Authorizers:
Gas used:
46