Written by “Cookies do not appear to be enabled on your browser client. You will not be able to install the application with this feature disabled. Alternatively, there could also be a problem with the server’s session.save_path. If this is the case, please consult your hosting provider if you don’t know how to check or fix this yourself.”
Should you run into this problem the issue is likely that the session.save_path setting in php.ini is set to either an incorrect setting, a wrong permission on the folder, or no setting at all. If you have access to the servers php.ini file you can change the setting to something like the following:
session.save_path = /tmp
If you do not however, have access to this file then your next option is to use a .htaccess file (obviously you will then need to hope you are on an Apache server, not Windows/IIS). You can then enter this setting into your .htaccess file and achieve the same result. For instance:
php_value session.save_path "/isp/websites/sites/example.com/docs/tmp"