upgrade opencart version and theme

Hello jass11878, I am good at : 1. WordPress, Shopify, Magento, Opencart, Joomla web development 2. PSD to HTML 3. Responsive web development 4. Graphics Designing 5. Photoshop 6. PHP 7. html + CSS Styling 8. js & jQuery. you can check my work at "https://www.freelancer.com/u/webcast.html#/reviews". I would like to work on your project. I Really Need this work. l will not disappoint you. Thank you.

hi i. am a php developer. i can do this work at this cost within less time depends on the discussion

I am a PHP developer . I will update your system if you want. I 2 year+ experience in PHP with PHP security. Thank you.