Flow price: --
2c138f36d0cf622ff79bde3eee823a92c1fc2401dd402226d069e58285d8dde2

Transaction

Hash: 2c138f36d0cf622ff79bde3eee823a92c1fc2401dd402226d069e58285d8dde2
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 2c138f36d0cf622ff79bde3eee823a92c1fc2401dd402226d069e58285d8dde2:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
2c138f36d0cf622ff79bde3eee823a92c1fc2401dd402226d069e58285d8dde2
Status:
ERROR
Block height:
39930840
Block id:
142bc2640ef72db981e8250c6baa41f7943bd04a2257ef3a4841045c579a5fa8
Timestamp:
Saturday 29 October 2022 at 14:09:34 UTC
()
Proposer:
Authorizers:
Gas used:
48