Flow price: --
99e367593c435d941212fbb60ab2ddf645a4c51d71f41b201a60af16406ba44e

Transaction

Hash: 99e367593c435d941212fbb60ab2ddf645a4c51d71f41b201a60af16406ba44e
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 99e367593c435d941212fbb60ab2ddf645a4c51d71f41b201a60af16406ba44e: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:
99e367593c435d941212fbb60ab2ddf645a4c51d71f41b201a60af16406ba44e
Status:
ERROR
Block height:
40000171
Block id:
3d816fad96b965cc8116722d95816d6110ba4c2120d330145c7f5b250b86c249
Timestamp:
Sunday 30 October 2022 at 17:50:19 UTC
()
Proposer:
Authorizers:
Gas used:
49