Hi there,
An address is an essential piece of information and I'll be happy to assist you with entering it in QB.
Since you've verified the address is correct, I suggest checking on the Canada Post website to make sure everything is correct. Sometimes there may be small errors that are easy to miss. Here's a link to the Canada Post website. Try entering your address on the website and verify that there are no errors.
If there are no errors, I recommend clearing cache and cookies on your browser. Doing this helps by fixing most issues the site may be having. Here's an article which shows you how to do that: How to clear Cache and Cookies.
Give this a try and if you're still having issues, I recommend contacting our support team using this link.
