Failed to Configure CA Certificate chain

I got my free ssl at and it works really fine. My site is working with https://. After I configure LAMP and VSFTP and broke something in there, I decided to re-install UBUNTU 12.04 OS to wipe out all the configurations and unnecessary thing i made in there.

Following the same procedure as I was configuring it before and added the same

SSLCertificateFile /etc/apache2/ssl/ssl.crt
SSLCertificateKeyFile /etc/apache2/ssl/private.key
SSLCertificateChainFile /etc/apache2/ssl/

When I restart the apache2 it showed FAILED instead of OK. I immediately run this command cat /var/log/apache2/error.log and found out the error Failed to configure CA certificate chain!.

I followed this post but still no luck.

BTW, I configured my VPS like this tutorial and it works so fine before i re-install my OS.

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Does <code>/etc/apache2/ssl/</code> exist? Try overwriting it with the latest copy from StartSSL: <pre>wget -O /etc/apache2/ssl/</pre>