URL redirection issue

Hi there

I am confused in redirection for the plugin. i have a website like https://example.com/us and other one is https://example.com/nz and one moer.
I want whenever someone visits from nz website should redirect to nz url’s.
for example:

https://example.com/us/about should go to https://example.com/nz/about
https://example.com/us/contacts should go to https://example.com/nz/contacts

I have 60 URLs so i can’t target each and every url . i want like a query string when someone on /us/ this will redirect to /nz/ page?
Is this possible with your plugin? if yes, how can i do this?

Plugin is up to date and no issues. Issue is not with the main menu , its mainly with the buttons on the page.

The page I need help with: [log in to see the link]