Flow price: --
f2f59ea42d71bf65ba87616f79a045ffea9fd2352d01260e5d7a61dc1389a539

Transaction

Hash: f2f59ea42d71bf65ba87616f79a045ffea9fd2352d01260e5d7a61dc1389a539
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f2f59ea42d71bf65ba87616f79a045ffea9fd2352d01260e5d7a61dc1389a539:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f2f59ea42d71bf65ba87616f79a045ffea9fd2352d01260e5d7a61dc1389a539
Status:
ERROR
Block height:
39857135
Block id:
3dbbbc779c6b0ccb46103d637bb8fd9891d12f86469a93570d82fffd2958dd2a
Timestamp:
Friday 28 October 2022 at 08:39:50 UTC
()
Proposer:
Authorizers:
Gas used:
47