Flow price: --
9131371239a20203b1b09d7feb50b4d336d28f6d36dc790808c6443b5ab6dbf8

Transaction

Hash: 9131371239a20203b1b09d7feb50b4d336d28f6d36dc790808c6443b5ab6dbf8
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9131371239a20203b1b09d7feb50b4d336d28f6d36dc790808c6443b5ab6dbf8:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9131371239a20203b1b09d7feb50b4d336d28f6d36dc790808c6443b5ab6dbf8
Status:
ERROR
Block height:
40134508
Block id:
674ca7a201b4811733bc240005ed5a40fcfdd8d395d09e967e55bb4d4857d81d
Timestamp:
Tuesday 1 November 2022 at 23:57:15 UTC
()
Proposer:
Authorizers:
Gas used:
50