Implementation of QR code reading function

[shimesabajun]

I don't know how to resolve this error. What should I do?
[Failed to launch camera in 10 seconds
UnityEngine.Debug:LogError (object)
ChatdollKit.IO.ChatdollCamera/d__43:MoveNext () (at Assets/ChatdollKit/Scripts/IO/ChatdollCamera.cs:389)
Cysharp.Threading.Tasks.CompilerServices.AsyncUniTask2<ChatdollKit.IO.ChatdollCamera/<ReadCodeAsync>d__43, string>:Run () (at Assets/Plugins/UniTask/Runtime/CompilerServices/StateMachineRunner.cs:313) Cysharp.Threading.Tasks.AwaiterActions:Continuation (object) (at Assets/Plugins/UniTask/Runtime/UniTask.cs:21) Cysharp.Threading.Tasks.UniTaskCompletionSourceCore1:TrySetResult (bool) (at Assets/Plugins/UniTask/Runtime/UniTaskCompletionSource.cs:139)
Cysharp.Threading.Tasks.CompilerServices.AsyncUniTask2<ChatdollKit.IO.ChatdollCamera/<WaitForReadyAsync>d__39, bool>:SetResult (bool) (at Assets/Plugins/UniTask/Runtime/CompilerServices/StateMachineRunner.cs:328) ChatdollKit.IO.ChatdollCamera/<WaitForReadyAsync>d__39:MoveNext () (at Assets/ChatdollKit/Scripts/IO/ChatdollCamera.cs:261) Cysharp.Threading.Tasks.CompilerServices.AsyncUniTask2<ChatdollKit.IO.ChatdollCamera/d__39, bool>:Run () (at Assets/Plugins/UniTask/Runtime/CompilerServices/StateMachineRunner.cs:313)
Cysharp.Threading.Tasks.AwaiterActions:Continuation (object) (at Assets/Plugins/UniTask/Runtime/UniTask.cs:21)
Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1:TrySetResult (object) (at Assets/Plugins/UniTask/Runtime/UniTaskCompletionSource.cs:139)
Cysharp.Threading.Tasks.UniTask/DelayPromise:MoveNext () (at Assets/Plugins/UniTask/Runtime/UniTask.Delay.cs:687)
Cysharp.Threading.Tasks.Internal.PlayerLoopRunner:RunCore () (at Assets/Plugins/UniTask/Runtime/Internal/PlayerLoopRunner.cs:175)
Cysharp.Threading.Tasks.Internal.PlayerLoopRunner:Update () (at Assets/Plugins/UniTask/Runtime/Internal/PlayerLoopRunner.cs:145)
Cysharp.Threading.Tasks.Internal.PlayerLoopRunner:Run () (at Assets/Plugins/UniTask/Runtime/Internal/PlayerLoopRunner.cs:104)]