Hi,
Please could you confirm more details for your project as you have not shared sufficient information?
I will certainly assist you with the website upgradation as I have done similar job before.
Technically I am competent in PHP (v5.5 & 5.6), CodeIgniter, WordPress, Magento, Joomla, MySQL, HTML/HTML5, CSS/CSS3, Ajax, jQuery, Bootstrap v3, JavaScript etc.
Please do ping to discuss further.
Thanks & Regards
Brijesh N, Web Expert