Thread:Project:Support desk/Upgrade MediaWiki 1.18.0

I have been upgrading MediaWiki in so many times over 3 years without a problem. Today, I just did upgrade version 1.18.0. There are two problems:

1.) [Resolved] During command:

Found the problem from $wgMiserMode

2.) I get blank pages without showing any error print on the page. I have looked at error log it says:

How can I resolve this problem?

MediaWiki 1.18.0

PHP 5.2.11 (apache2handler)

MySQL 5.0.77