So you have your WooCommerce setup and products added but then your customer is about to pay/checkout their items. WooCommerce for some reason decided to show your client “There are no shipping options available. Please ensure that your address has been entered correctly, or contact us if you need any help.” and cant checkout. Heres is the usual reason why that happens:

Reason: Products have no defined weight.
Solution: Edit your product and add in weight

Reason: No shipping method configured
Solution: Go to your backend dashboard. WooCommerce >> Settings >> Shipping and click Add Shipping Zone

Reason: Wrong / Invalid Address
Solution: Check google maps if that address really exists and email customer back.