Lighttpd cannot create php-fastcgi.socket
Solution 1:
Check that lighttpd has permission to write to /var/run/lighttpd
Solution 2:
Got Fixed with following changes:
mkdir /var/run/lighttpd
touch /var/run/lighttpd/php-fastcgi.socket
chown -R lighttpd:lighttpd /var/run/lighttpd
Where lighttpd is the username.
Updating socket in lighttpd.conf to point to /var/run/lighttpd/php-fastcgi.socket solves the problem.
unix:/var/run/lighttpd/php-fastcgi.socket-0 No such file or directory