Flow price: --
d501408d53f109f4829d9c623c3bb6d0fcc0cca3626bfde36a77c7e930fba273

Transaction

Hash: d501408d53f109f4829d9c623c3bb6d0fcc0cca3626bfde36a77c7e930fba273
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d501408d53f109f4829d9c623c3bb6d0fcc0cca3626bfde36a77c7e930fba273:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
d501408d53f109f4829d9c623c3bb6d0fcc0cca3626bfde36a77c7e930fba273
Status:
ERROR
Block height:
39972168
Block id:
b1e031e5bb8a54ed2444aaa29bc312c79378496ae9058b001ae8c3be29509778
Timestamp:
Sunday 30 October 2022 at 06:37:47 UTC
()
Proposer:
Authorizers:
Gas used:
50