This is caused by an incomplete store set up.
Please make sure of the following.
1. Shipping allowed countries and destinations are selected.
2. Shipping options are created.
3. If you are using weight based shipping calculations (You have ticked any real-time shipping options or selected custom shipping by weight) make sure you have a weight applied to all your products.
4. Set up your payment methods, double check all details to ensure they are correct and active.
5. Remove the feet / prime symbol from titles and variants ( i.e. remove the ' symbol ) as it is known to cause issues at checkouts. Replace it with the word 'feet' or the double prime 'inches' as a best practice.
