Can you open the “networking” tab of your browsers developer tools on one of your sites.
There should be a request to piwik.js and shortly after that a request to piwik.php. Can you check if both are working fine (don’t return a 5xx response code)? Are there errors in the javascript console?
sorry for the late replay, appreciate your help very much…
my server expert could solve it by checking the SSL certificates…somehow they had expired…all working fine again