Looking at your store https://bountyhuntertoys.com/store/ it is clear to me that absolutely NOTHING in this store has been configured. Starting from such basics as enabling friendly URLs or anti-spam protection of the contact form.
Also switching to a paid SaaS might be a good option, pay $300 a month, then at least the basic configuration will be done for you by shopify support.
As for migration, exporting data from thirtybees to CSV will not help you at all. You need to be very knowledgeable about the database structure of both applications to properly map the data. Also, it is best to pay a few hundred dollars and have the migration done by a company that will do it properly. For example, Cart2Cart: https://www.shopping-cart-migration.com/provided-services/data-migration-service-packages
And such a note that the migration does not transfer customer passwords, also all your customers will have to reactivate their accounts.