Flow price: --
7b549533f8e4311ad7baf61231ea3cf0e95ee05140284c15cf6ed06e86945f67

Transaction

Hash: 7b549533f8e4311ad7baf61231ea3cf0e95ee05140284c15cf6ed06e86945f67
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 7b549533f8e4311ad7baf61231ea3cf0e95ee05140284c15cf6ed06e86945f67:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
7b549533f8e4311ad7baf61231ea3cf0e95ee05140284c15cf6ed06e86945f67
Status:
ERROR
Block height:
39840831
Block id:
5188d28f5ec42085182fa5a191808481ee758cc8fb1949ed5e5d586f0ea14def
Timestamp:
Friday 28 October 2022 at 02:05:00 UTC
()
Proposer:
Authorizers:
Gas used:
47