It's full of mistakes. Deprecated classes are used. No working application.
Author response
Dear Customer,
Thank you for bringing this to our attention.
We have thoroughly verified our application, and it is working very fine on our end. If you are encountering any issues, please generate a support ticket at https://iqonic.desky.support, and our support team will be happy to assist you promptly.
Thank you for your understanding.
Best regards,
Iqonic Design