Hi there?
I have experience paypal SDK.
I can help you to fix your app issue if you provide me details.
I am skilled and deep experienced in React and React Native project using modern technology Expo, React Hooks and Redux even implementing back-end by using Firebase, NodeJS, Parse or PHP framework such as Wordpress or Laravel.
JavaScript ES6, NodeJS, Swift, Object C, Android Java, Python, C/C++, Mysql, Postgresql, MongoDB and PHP.
Bulma, GerrnSock, GraphQL, Gatsby, Heroku, Git, AWS, Godday, CPanel.
PayPal or Stripe payment gateway implementing.
Please contact me to feel free to discuss about your project detail.
Thank you.