IDSite is missing - cannot ad new websites (no replies)

Hi all,

i searechd all forums regarding this issue looking for help without success. So now i am trying it here and kindly ask for your help. Piwik is running since ages now for our websites with great success. We already update it automatically without any problem so far.

Today i wanted to add another website to monitor bt this failed. I had got above mentioned errror and could not add the page.

Dashboard : all common links worked but when i try to go to the submenu "websites" same error appears. Instead a fragmented part of the homepage where piwik is hosted appears - Screenshot enclosed.

index.php Piwik is secured by htaccess. Disabeling the htaccess did not work

different Browser - same result

deleted all files in tmp as per Piwik troubleshooting advise - same result

in the search enginges I found an advise that soemetimes worpress causes this error - but we dont work with wordpress.

updated today to latest beta version - problem still the same.

Does anyone have an idea what to do? I am not a php specialist th4 apologise for the rookie explanation - thanks for any help - it is urgent.

Dirk