Flow price: --
41257f9d162f8f9de7889e8f985f99d541882f81b012f7bc136a56609d4241b6

Transaction

Hash: 41257f9d162f8f9de7889e8f985f99d541882f81b012f7bc136a56609d4241b6
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 41257f9d162f8f9de7889e8f985f99d541882f81b012f7bc136a56609d4241b6:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
41257f9d162f8f9de7889e8f985f99d541882f81b012f7bc136a56609d4241b6
Status:
ERROR
Block height:
40128562
Block id:
8d9f92311672c99ba8301e929cd51ba3fbec570a7d114382e2f4584713948be2
Timestamp:
Tuesday 1 November 2022 at 21:30:59 UTC
()
Proposer:
Authorizers:
Gas used:
49