559621 zen cart expert needed

we must migrate a zencart e-commerce to prestashop. We purchased a module that allows you to transfer all data. Right now we have changed the DNS so on this url [login to view URL] there is the old site in zencart and here [login to view URL] there is the new site in prestashop. However, the import module does not work properly because of two similar domains (actually worked well one time then we deleted all the data to add a new template and it did'nt worked anymore even regenerating key ect...). So we decided to install the actual version of zencart on a test domain: [login to view URL], and then try to use again the module to import data. At this time we are unable to make work properly the new zencart installation (the site works well at this url [login to view URL], but here [login to view URL] there is the offline message) you might help us understand if there was some installation issues or, if it is faster, to redo the duplication of the site from scratch, thanks