Not able to access LINE APIs like getFriends, getGroups, getApprovers in Group after LOGIN to LINE SDK in Swift iOS and generating access token.

Pre condition, Condition to reproduce

I have created a POC on LINE LOGIN SDK in iOS Swift. I am using starter App mentioned below. https://github.com/line/line-sdk-ios-swift I am able to Login using this POC. and I am getting the access Token successfully.

Issue/ Error Message details

When I try to Click on GetFriends, GetGroups. It gives me below error.

Accompanying respective source code

responseFailed(reason: LineSDK.LineSDKError.ResponseErrorReason.invalidHTTPStatusAPIError(detail: LineSDK.LineSDKError.ResponseErrorReason.APIErrorDetail(code: 403, error: Optional(LineSDK.APIError(error: "Unlicensed API Request", detail: nil)), raw: <NSHTTPURLResponse: 0x600001fec5a0> { URL: https://api.line.me/graph/v2/friends } { Status Code: 403, Headers {
    "Cache-Control" =     (
        "max-age=0, no-cache, no-store"
    );
    "Content-Length" =     (
        36
    );
    "Content-Type" =     (
        "application/json;charset=UTF-8"
    );
    Date =     (
        "Wed, 18 Aug 2021 05:37:55 GMT"
    );
    Expires =     (
        "Wed, 18 Aug 2021 05:37:55 GMT"
    );
    Pragma =     (
        "no-cache"
    );
    Server =     (
        openresty
    );
    "x-content-type-options" =     (
        nosniff
    );
    "x-frame-options" =     (
        DENY
    );
    "x-xss-protection" =     (
        "1; mode=block"
    );
} }, rawString: Optional("{\"message\":\"Unlicensed API Request\"}"))))

Resolution Tried

I tried other APIs like getApprovers in friends , open chat that are also returning similar error.

Reference information (Version / Platform/ environment)