Error: Unable to start session. Please check that the web server has enough permission to write to these files/directories:
For example, on a Linux server if your Apache httpd user
is www-data, you can try to execute:chown -R www-data:www-data /home/studiop/public_html/piwik/tmp/sessions/chmod -R 0755 /home/studiop/public_html/piwik/tmp/sessions/
Debug: the original error was Zend_Session::start() - /home/studiop/public_html/piwik/libs/Zend/Session.php(Line:469): Error #2 session_start(): Failed to read session data: files (path: /home/studiop/public_html/piwik/tmp/sessions) Array