Hello,
I am a tech enthusiast and have been managing servers since I was 14.
I understand you want to upgrade your PrestaShop to latest. As long as your theme is compatible this should be straightforward.
I'll backup your existing Prestashop (just in case), upgrade and reconfigure your setup as required.
Lemme know if you are interested and I'll be more than happy to discuss this.
P.S. I am new on this site and am only looking to make my reputation for now so I am extremely high value for money. ;)
Best regards,
Umer