Trouble with older version and third-party module incompatibilities.
Cart Upgrade service allows you to upgrade your store version with latest one without loose your current website settings and data.
RECOMMENDED: always recommend you to use latest versions and technologies to overcome software bugs and service provider software compatibility.
IMPORTANT: Before start to order for this service, must have to take full manual backup of your store with databases. once you upgrade store not possible to revert or refund.