Flow price: --
b19c449097f042473d134e8dadf5c51ea4b1474d660ccc60f9008cc3e5e41dd8

Transaction

Hash: b19c449097f042473d134e8dadf5c51ea4b1474d660ccc60f9008cc3e5e41dd8
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b19c449097f042473d134e8dadf5c51ea4b1474d660ccc60f9008cc3e5e41dd8:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b19c449097f042473d134e8dadf5c51ea4b1474d660ccc60f9008cc3e5e41dd8
Status:
ERROR
Block height:
40144945
Block id:
c04b4b0d84612bf739d1faf11316270254b2c016c36115cc84fb3b9cbd26dc02
Timestamp:
Wednesday 2 November 2022 at 04:10:38 UTC
()
Proposer:
Authorizers:
Gas used:
48