ltijs: Cannot connect to self-hosted Canvas lms

I have tried ltijs to connect to our self-hosted Canvas at http://dvseok.shop but I cannot get token in function lti.onConnect, it returend undefined. this is our config:

await lti.registerPlatform({
    url: "http://dvseok.shop",
    name: "dvseok",
    clientId: "10000000000003",
    authenticationEndpoint: "http://dvseok.shop/api/lti/authorize_redirect",
    accesstokenEndpoint: "http://dvseok.shop/login/oauth2/token",
    authConfig: {
      method: "JWK_SET",
      key: "http://dvseok.shop/api/lti/security/jwks",
    },
  });

I also tried with your demo project ltijs-demo-server and ltijs-demo-client, when I go to browser of ltijs-demo-client, it always displayed Failed retrieving members! Error: Missing lti key..

I tried to calling a GET request /info demo server with my Canvas LTI key. This is the response:

{
    "status": 401,
    "error": "Unauthorized",
    "details": {
        "message": "Error validating LTIK or IdToken",
        "errorLog": "jwt malformed"
    }
}

Am I missing anything? Thanks!