Flow price: --
b34d0bc4f5ecbb4cf4d507589a00ada1d2669c6db77a8b0c5eec2b676a8d3ff8

Transaction

Hash: b34d0bc4f5ecbb4cf4d507589a00ada1d2669c6db77a8b0c5eec2b676a8d3ff8
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b34d0bc4f5ecbb4cf4d507589a00ada1d2669c6db77a8b0c5eec2b676a8d3ff8:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b34d0bc4f5ecbb4cf4d507589a00ada1d2669c6db77a8b0c5eec2b676a8d3ff8
Status:
ERROR
Block height:
40117555
Block id:
d71a416db0de5ea89510223ce699ad6f4a2d7c4c463dfad8b5b729008f78ace0
Timestamp:
Tuesday 1 November 2022 at 17:01:40 UTC
()
Proposer:
Authorizers:
Gas used:
47