Flow price: --
56aa99935accccc57712cf052a9e8e3e1bddca3244f1d002b64b4775a5fffe03

Transaction

Hash: 56aa99935accccc57712cf052a9e8e3e1bddca3244f1d002b64b4775a5fffe03
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 56aa99935accccc57712cf052a9e8e3e1bddca3244f1d002b64b4775a5fffe03:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
56aa99935accccc57712cf052a9e8e3e1bddca3244f1d002b64b4775a5fffe03
Status:
ERROR
Block height:
40129084
Block id:
77263035d2a454b37c13b0777b3578dff5381f8c90eba6a8007e028d23af23a8
Timestamp:
Tuesday 1 November 2022 at 21:43:41 UTC
()
Proposer:
Authorizers:
Gas used:
47