Thanks for the report. Can you try to delete the files in piwik/tmp/assets/

and then open this URL you pasted above -> does it show the Javascript?

do you see any error in your server error log?

When I open the above link it shows me the javascript code.

I've deleted all files in piwik/temp/assets/ but it is the same error and I suppose it is generated by a script regarding Visitor Map because the map isn't loading. No errors on server log.

TypeError: a is undefined
http://www.domain.com/piwik/index.php?module=Proxy&action=getCoreJs&cb=a95ed2f642d825a066e6df7039b8d72a
Line 4

Hey andreij,

to debug this issue we would probably need access to your Piwik instance. Is this possible? Would you mind creating a Piwik user for us and send us the credentials? You can delete the user afterwards again. If so, can you send the details to hello @ piwik.org and leave a comment afterwards here (in case mails goes into spam folder)?

Done.

I had a look and noticed the problem is a "301 Moved Permanently" redirect when the UI performs a POST request to the API.

For instance there is a redirect from

POST http://www.yourdomain.xy/piwik/index.php?apiAction=getAll&apiModule=MultiSites&date=2014-05-20&enhanced=1&filter_limit=0&format=JSON&hideMetricsDoc=1&idSite=1&method=API.getProcessedReport&module=API&period=day&showColumns=label,nb_visits

to

GET http://www.yourdomain.xy/piwik/?apiAction=getAll&apiModule=MultiSites&date=2014-05-20&enhanced=1&filter_limit=0&format=JSON&hideMetricsDoc=1&idSite=1&method=API.getProcessedReport&module=API&period=day&showColumns=label,nb_visits

To be concrete your server seems to redirect all http://www.yourdomain.xy/piwik/index.php requests to http://www.yourdomain.xy/piwik/

The actual POST request contains your API auth token. This is needed for authentication and to make sure you have access to the requested website. As there is a redirect the auth token gets lost meaning there is no permission to view the page.

I have debugged the All Websites Dashboard as well as the Country Map and both fails because of this reason. Maybe you can have a look on the server and display this redirect?

You can delete the account again.

Thanks for support.
I've solved the problem.