Това правил ли си го? Защото, аз цитирам официалната страница на модула: https://addons.prestashop.com/en/data-migration-backup/5496-.html
Upgrade to:
1.4 to minor versions of 1.4,
1.4 to 1.5,
1.4 to 1.6,
1.5 to minor versions of 1.5,
1.5 to 1.6,
1.6 to minor versions of 1.6,
and 1.7 to minor...