Hello there
I have gone through your project detail, you want prestashop 1.6 to 1.7 upgrade error, i am expert in Prestashop web development , Provide you good communication and services. currently i have completed Prestashop project Myself having has 10 + years experience of web site development. Expert in Custom programming in php / Mysql / Jquery /Laravel/ Code Igniter/ Prestashop/ Drupal/ Wordpress/ Joomla / OSC / Magento /OpenCart / Android / Mobile development / Responsive.
Ready to start the work immediately.
I am confident to handle your projects with dedication and good quality.
Thanks and regards,
Harpreet Singh