Flow price: --
652d0c8f26e3fcb8972643a6bf6edb65f675f5f60e25a1d391f1a20ae96472f7

Transaction

Hash: 652d0c8f26e3fcb8972643a6bf6edb65f675f5f60e25a1d391f1a20ae96472f7
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 652d0c8f26e3fcb8972643a6bf6edb65f675f5f60e25a1d391f1a20ae96472f7:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
652d0c8f26e3fcb8972643a6bf6edb65f675f5f60e25a1d391f1a20ae96472f7
Status:
ERROR
Block height:
39995072
Block id:
453497a27682ef03fa174e776faa4c0718009a4faa473ac6de7dce60624a0a26
Timestamp:
Sunday 30 October 2022 at 15:47:24 UTC
()
Proposer:
Authorizers:
Gas used:
65