Shipping Zone problem

At which point do you get the error message ?
Before seeing the addresses selection screen of the checkout or after ?
What is your "main tax zone" (in the config) ? When the address is not yet selected, this main tax zone is used instead. So if you set your tax zone to canada, that your address is in UK, but that you have a checkout workflow in several steps where the shipping view is before the address view, that's something which could happen.

Could you do a screenshot of your manual shipping methods listing ?

Which version of HikaShop are you using ? If it's not the 1.5.0, I would first ask you to update and try again. I can see that you have a shipping method refresh problem on the checkout which should not be the case with the latest version.

It's a bit blurry but I think that on the shipping methods listing screenshot you made, one of the two methods has a maximum price in euros while the minimum price of the other is in pounds. So that could explain the problem: the price of your order is within the gap of the shipping methods and thus they are discarded. Could you check on that ?

On the listing of shipping methods do you see a € or a £ ? If you see a € and that you have a £ when you edit the shipping method, that's because you have the € saved in the preferences but that you unpbulished it. So the system doesn't find it there and displays the dropdown with £ because € is not available but the € is still there as long as you don't save the shipping method.

That's indeed fine. Could you check that the zone for UK on your System->Zones listing if of the type country and has the id 222 ?

Could you check that you have only this one (because if you created another UK country zone and that you used that one for the address, that would explain the problem)?

Well, everything seems good
So the only option left is to have an access to your website in order to put traces in the code and find out why it doesn't work as it should.

You can use our contact form:
www.hikashop.com/en/support/contact-us.html

Thank you for the access.

The problem is now clear: you changed the type of the state field to text instead of zone.
When the system decides of the zone of the order, it first decides whether to use the state information or the country information. If the state information it uses it.
On your case, since the state field is there and that the state name is entered by the user himself, it never matches the entry in the database. Thus, the system doesn't find any zone for the order and thus the shipping methods with restrictions on a zone are discarded.

We're going to add an additional check on that to avoid that problem.
On your end, you can just unpublish that field, create a new state field for your state input box and then go to Display->Views and edit the views address_template in order to add your new field column name there so that it appears on the addresses.