Need to Resolve one small error in Codeigniter Paypal Library

I am a Web Security Researcher & Bug Bounty Hunter at HackerOne, BugCrowd, BountyFactory and many other Independent Bug Bounty Programs Reported Security Vulnerabilities to Google, Facebook, Twitter, TCS, DigitalOcean, Magento, Nexmo and many other Companies Listed in more than 30 Company's Hall of Fame for reporting Security Vulnerabilities and reported more than 200 Security Vulnerabilities Web Security : OWASP, BurpSuite, Kali Linux, BugCrowd VRT, MetaSploit + HTML5, CSS3 + jQuery, Javascript, Ajax + Angular JS, React JS + Website design + Bootstrap, Responsive design + PHP + ColdFusion + MYSQL + Magento Development + Joomla Development + Laravel Develpment + Wordpress, eCommerce, Shopping carts + Dot Net + CodeIgniter Development + User Interface / IA, Graphic Design, Logo design + PSD to HTML + Web Security + Penetration Testing + Ethical Hacking + Linux : CentOS, RedHat, Ubuntu + Windows Server + Vulnerability Assessment

Sir, I can error in codeigniter website. I have created many projects using codeigniter. I have more then 7 years experience in PHP, HTML, CSS, Wordpress, Codeigniter etc Thanks

Hi! I have two years experience about Php, Wordpress, Codceigniter, HTML, CSS, Bootstrap, Ajax, API, Javascript and Jquery and also payment gateways, sms gateways. So, I can do your task definitely

Please contact me in chat with the english translation. Hope to hear from you soon. Thanks........................................................