IsDeviceBlockError
Description
When a 403 blocked device error occurs because the device in use is on BACKND Console's blocked devices list, 'true' is returned.
The included error case is as follows:
- When the device is blocked
statusCode : 403
errorCode : ForbiddenException 
Example
BackendReturnObject bro = Backend.GameData.Get("tableName", new Where());
if(bro.IsSuccess() == false) {
    if(bro.IsBadAccessTokenError()) {
        var bro2 = Backend.BMember.RefreshTheBackendToken();
        
        if(bro2.IsSuccess() == false && bro2.IsDeviceBlockError()) {
            Debug.Log("The device has been blocked.");
        }
    }
}