Hi Avril,
Thanks for reaching out and thanks for using Crio Pro WordPress theme with BoldGrid Post and Page Builder!
There are WooCommerce platforms out there but it depends on what you’re selling on your platform. A common alternative is Easy Digital Downloads but this is mostly for downloadable and virtual products. Maybe if you can explain what you need in your e-commerce platform we can help point you in the right direction.
Please let us know if we can answer anything else for you!