Flow price: --
4bf9aaa6501dd0d256620654139c43156e6e0a827c6b566d71f4b45a2b0786b4

Transaction

Hash: 4bf9aaa6501dd0d256620654139c43156e6e0a827c6b566d71f4b45a2b0786b4
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 4bf9aaa6501dd0d256620654139c43156e6e0a827c6b566d71f4b45a2b0786b4:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
4bf9aaa6501dd0d256620654139c43156e6e0a827c6b566d71f4b45a2b0786b4
Status:
ERROR
Block height:
40107445
Block id:
33577808a8ac03fba289dea376ccf2ca5d99d5b7c1d7467ba7abfef6982af3e6
Timestamp:
Tuesday 1 November 2022 at 12:55:55 UTC
()
Proposer:
Authorizers:
Gas used:
47