After Shifting Hosting of Ecommerce Website Few Features Stopped Working

Hi Support,

Last year in 2016 a company Illusion Groups (https://www.illusiongroups.com/) given a Free ecommerce website development service to me, and the e-commerce website was developed on WordPress 4.6 with WooCommerce and it was working perfect but I changed the website hosting myself in Feb last month then problems start coming..

In Feb, I shifted my ecommerce website hosting from their Free hosting server to my paid server, after that few of my ecommerce website features stopped working and some design also start giving problem and not coming as they should be, few more probleams are there like add to cart feature is not working, images are not coming properly, photo zoom feature, website is now too slow to load, etc.

I Don’t know why its happening, I can code but I did website transfer 1st time.
Is this about server misconfiguration?
Is this happening because I got free website development from Illusion Groups?
Are they code it wrong?
Did I made any mistake while transferring the website?

I am unable to understand this problem. As I am unable to do any sales from my website from last 1 month, please help me someone…
Please help