Change the address on my website

Dear developer,

I need the address (physical location) on a website to be updated.

I'm not able to reach the developer who originally made the website. So I don't know which technology he used to build it.

If everything goes well with the address, we might order some more minor changes separately.

Here is the website:
www.chainge.at

Get it in touch.

Cheers,
Raf