When i choose a country in server settings or a clan from the dropdown menu and press update, it goes directly back to the old settings.

And from the clan settings i can't use the add server button.

I just tested each of those features and they are working for me. Did you claim the server before or after you attempted to update?

If it was claimed:

1. What, if any error messages are you receiving?
2. When you selected a new location, was it a location different than the one prefixed with "<NO CHANGE>" or "<AUTOMATICALLY DETECTED>" or the plain "Germany"? After selecting that, did you hit the "Update Location" button.
3. Have you tried clearing your browser cache?
4. Have you tried on a different browser?

I didn't have a clan name yet when i claimed the server so it was claimed first and then i tried to add the clan.
I do see my clan name in the dropdown window but when i select it and press update clan it just reloads the page with <NONE ASSIGNED> in the window. This is the same for my country, it's set to <NO CHANGE> Germany and when i set it to Netherlands and press update location it just reloads the page again with <NO CHANGE> Germany. Also when i try to add the server through the clan profile i get nothing, I push the ADD button and nothing happens.

I tried Chrome, Firefox and internet explorer.
Deleted my cache from all of them.
I get no errors.
I even tried 3 different pc's.

I tried to change it through my mobile phone internet and changing the clan worked but when i try to change the location it gives me the error that i can only do this once every 2 weeks. It must have been something with my firewall in my modem.

I've changed it to the Netherlands for you.

If you have to change something again in the future, you may want to try opening your browsers debugger tools and watch the console for errors. In chrome you can typically access it through F12 else in the main dropdown it is under Tools >.

Thanks for the help and fast response!
I'll make sure to do that next time but i'm almost sure it's the firewall i'm behind since i had no problems through the mobile internet.

Thanks again and i'll figure it out since the problem is coming from my side.

I have been poking around for errors and i seem to get 2 of them when i press a update button. At first it gave the error that i didn't have CORS (Cross-Origin Resource Sharing) after installing cors extention for chrome i get these 2 errors:

Uncaught SyntaxError: Unexpected token } global.js:146
Uncaught SyntaxError: Invalid left-hand side expression in postfix operation popup_external_link.js:52

Any idea?

Still having problems with your site, reinstalled one of my pc's with a fresh windows 8.1 but still no luck and i get these errors now when i try to add our clan to our 7 days to die server.

Uncaught SyntaxError: Unexpected token } global.js:146
Resource interpreted as Image but transferred with MIME type text/html: "http://pubads.g.doubleclick.net/pagead/adview?ai=CmW47LFCgU8OQHueZigaPiYDoD…z7U_-mvAxe9kRb567AlFm7FGqnR94AQBgAbSsNf1s9W5qhqgBiE&sigh=MN9l-OidLP4&vis=1". VM268:1

When i try to change things from my friends house i get the message that i have no permission, my phone and tablet just do the same thing as my pc now : reload the page and change nothing.

Will you try disabling your browser extensions? (ie. Use incognito mode in Chrome). I was not able to reproduce it, nor find syntax errors in the JavaScript.

Already tried incognito, that doesn't work either.

This error :
Uncaught SyntaxError: Unexpected token } global.js:146

Comes out in this :
function openInvoice(URL)
{
var load = <!--ow.open(URL,'','scrollbars=yes, menubar=no,height=470,width=740,resizable=no,toolbar=no,location=no,status=no-->
}

There seems to be something missing because this line doesn't close. There is a( but no ) or ; so the script global.js breaks there.
I don't know a whole lot about Javascript but it doesn't look right.