Hello,

Follow the below Instruction for change base_url Inside your Android Project file.

Please make sure You have Changed Base_url in both Place. app\src\main\your_package_name\vpn\api\WebApi.java And Also inside  app\src\main\your_package_name\vpn\fromanother\util\util\Constant.java

And make sure you are using https:// protocol like this https://yourdomain.com/  inside your domain