Flow price: --
470ff463ca423bcc6caa395f0a71f7041e12864ca5a31335910157ce5f27bff9

Transaction

Hash: 470ff463ca423bcc6caa395f0a71f7041e12864ca5a31335910157ce5f27bff9
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 470ff463ca423bcc6caa395f0a71f7041e12864ca5a31335910157ce5f27bff9:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
470ff463ca423bcc6caa395f0a71f7041e12864ca5a31335910157ce5f27bff9
Status:
ERROR
Block height:
40100840
Block id:
84749cb62244644776c4770f8e559b580cf55a2d09317071b07b3e48f52d69c5
Timestamp:
Tuesday 1 November 2022 at 10:15:31 UTC
()
Proposer:
Authorizers:
Gas used:
47