This restaurant currently does not deliver to your address help

I need some help with tastyigniter

I am testing the site and on the checkout side, it keeps saying the following

Sorry but form validation has failed, please check for errors. This restaurant currently does not deliver to your address

I found two solutions but none of them worked, the links to the solutions I found are below

https://forum.tastyigniter.com/thread-541.html https://forum.tastyigniter.com/thread-362.html

could it be to do with the address format

it currently is

think it is to do with the way the address is formatted

It's got the following

Address Line 1 Town Postcode County Country

But it should be like below

Address Line 1 Town County Postcode Country

Has anyone any ideas to try

Thank you in advance

Think I have sorted it, I think it is because my house is a new build, I used a old address I used to live that and it works fine