I really have tried looking, but getting nothing, my address is valid. It is a UK address but that was a problem back in 2020 for Square, has it been resolved yet?
The instructions they give for un-publishing and re-publishing don't seem to be there?
Hey @cascatz, I just want to jump in and confirm the issue has been resolved. It's definitely worth trying @Sam_400º suggestion and see if that help. There are also a couple of steps that may help:
You can find the unpublishing button under Website > Site Preferance > Unpublish. Once you've unpublished, just go back into Website > Edit Site to republish your site.
I hope this will help.
I thought that this had all been sorted out - I’ve been able to change mine to the below! 
If your address is public (ie not your home address) can you post a screen shot of where your entering it & the error message just to make sure We’re both thinking of the same place.
It might be a case of entering a nearby address it ‘likes’ then changing it, as I did have the closest address to the carpark I’m normally in put in there before.
Sam
Hey @cascatz, I just want to jump in and confirm the issue has been resolved. It's definitely worth trying @Sam_400º suggestion and see if that help. There are also a couple of steps that may help:
You can find the unpublishing button under Website > Site Preferance > Unpublish. Once you've unpublished, just go back into Website > Edit Site to republish your site.
I hope this will help.
Thanks everyone, I think it's sorted now, I changed the address slightly (not using the house number) and it seems to work. I also found how to unpublish so thanks for that.
Square Community