Flow price: --
f2acff8f1253954cd63376ee1f12abf5da43cd1033606a53fe96364273c7968f

Transaction

Hash: f2acff8f1253954cd63376ee1f12abf5da43cd1033606a53fe96364273c7968f
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f2acff8f1253954cd63376ee1f12abf5da43cd1033606a53fe96364273c7968f: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:
f2acff8f1253954cd63376ee1f12abf5da43cd1033606a53fe96364273c7968f
Status:
ERROR
Block height:
39979195
Block id:
4e11c0a1b86349f8688068336b883391d59824d2050371cee0d705c4cab2c44f
Timestamp:
Sunday 30 October 2022 at 09:26:44 UTC
()
Proposer:
Authorizers:
Gas used:
46