Sorry but it’s not related to our theme. This problem happens even with the default Storefront theme https://gyazo.com/dcbd7d0600d586a48abe7d047f21d391
We provide support related strictly to our theme issues.
We would recommend you to contact your hosting provider or WP support to get help with this or try any third-party plugins to import CSV files.
I would argue that it has everything to do with your theme. You are supposed to supply a theme that is compatible with wordpress. This bug will affect the usability of your theme so I would have thought you might be interested in working out why this function is stopping the functionality of your theme.
I’m sorry but we are theme developers and we are able to help with problems and bugs related strictly to our theme. Themeforest has the support policy and we are working according to that, please, read what’s included to theme support and what’s not to avoid misunderstandings https://themeforest.net/page/item_support_policy
We are interested to help you that’s why I suggested you to contact hosting provider or WooCommerce plugin support because then you’ll be able to get answers to your questions! Our theme is comparable with WP but CSV import option (WooCommerce plugin feature by the way) does not work even with the default WordPress theme, you can go to Appearance > Themes enable any default WP theme and check. We suggested you to try third-party plugin to import CSV file if the default option does not work. Did you try that?
If you buy the car it’s wrong to go to the car attendants and ask to fix the road from city A to city B. Choose the other road.
We are always ready to help with issues related to our theme or premium plugins that come bundled. All the questions related to default WP installation, WooCommerce or any other third-party plugin should be addressed to developers of this software.
P.S. If you think that our theme is the reason of all your problems, you are not satisfied using our theme, don’t want to follow the instructions from our support experts and you are not agreed with the ThemeForest support policy, please, submit refund request https://themeforest.net/refund_requests/new