Flow price: --
9595bf5216b4227301a38ba0705e0e86b34f3d258e50a5d426a02af35efc2008

Transaction

Hash: 9595bf5216b4227301a38ba0705e0e86b34f3d258e50a5d426a02af35efc2008
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9595bf5216b4227301a38ba0705e0e86b34f3d258e50a5d426a02af35efc2008:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9595bf5216b4227301a38ba0705e0e86b34f3d258e50a5d426a02af35efc2008
Status:
ERROR
Block height:
40169441
Block id:
7f45aa67ac7131698d57955ffedc27eaa96463f7e22546798250561333bd6d5d
Timestamp:
Wednesday 2 November 2022 at 14:06:53 UTC
()
Proposer:
Authorizers:
Gas used:
49