TypeError: Failed to fetch

I am using SendBirdCall.min.js version 1.10.20.

My authentication code is as follows:

const authOption = { userId: USER_ID, accessToken: ACCESS_TOKEN };

SendBirdCall.authenticate(authOption, (result, error) => {
    if (error) {
        alert("ERROR: " + error);
        // Handle authentication failure.
    } else {
        SendBirdCall.connectWebSocket()
            .then(function () { } )
            .catch(function ()  { alert('ERROR - Unable to connect to socket'); } );
    }
});

I get the following error: TypeError: Failed to Fetch.

In my google console, I noticed the URL https://(app id here).calls.sendbird.com/v1/users/152_mari_colas/login emits the following error: ERR_NAME_NOT_RESOLVED.

If I remove “calls.” from the URL, I get a response. It is as if the url “(app id here).calls.sendbird.com” does not exist, but the APP ID is correct.

Has Sendbird removed API URLs with the word “calls” in them?

did you manage to fix the problem? i got the same error