how to stop lip-sync

[hansolGib]

hello, I'm currently using uLipSync with uLipSyncWebGL.
I put lip-sync in a object called Characters and place vrm avatar inside it. it works fine.
however, when I change the scene, I got a log SendMessage: object Characters not found! in the javascript console every frame.
I guess this is because there is no object called Characters in other scenes.
but I'm not sure why I'm having this log. I thought the scene would be destroyed when moving to other scenes using SceneManager.LoadScene.
I tried to disable the script using <uLipSync.uLipSyncBlendShape>.enable = false and <uLipSync.uLipSync>.enable = false before changing the scene, but then I got an empty log every frame.
it seems the lip-sync is working even after scene change. how can I stop it?