Hello Mate,
I can help you with this issue and fix this as I am expert with Paypal integration and I worked many payment gateway integrations.
I am a full stack developer with 8 years of experience and have huge expertise in WORDPRESS, Laravel, Node.Js, React.Js, CakePHP, Codeigniter, Angular.js, Bootstrap, API Integration, Plugins, MYSQL, JavaScript, HTML, Jquery, Magento, HTML 5, YII frame, PSD to HTML and CSS to name a few. We have built more than 200 websites in Magento and WordPress including theme and customized theme as well.
If you give me this opportunity, this would be my first project with you, so I would be really grateful if you could give me this opportunity.
I am looking for long-term work relationship with you.
Looking forward to your positive response.
For more reference please see portfolio herewith.
Regards
Jitendar