Flow price: --
cd328c735e64663241b65a89a4ea9f4e2f5220a7a1e23e9258e323423fd01915

Transaction

Hash: cd328c735e64663241b65a89a4ea9f4e2f5220a7a1e23e9258e323423fd01915
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> cd328c735e64663241b65a89a4ea9f4e2f5220a7a1e23e9258e323423fd01915:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
cd328c735e64663241b65a89a4ea9f4e2f5220a7a1e23e9258e323423fd01915
Status:
ERROR
Block height:
39920318
Block id:
636da770fceae981907a27e221f2f0f1314bf5f4e61a3f743e52235f775bc6ce
Timestamp:
Saturday 29 October 2022 at 09:54:13 UTC
()
Proposer:
Authorizers:
Gas used:
52