Thread:Project:Support desk/Configuration errors - Fatal error: Call to a member function isMultipleKey() on a non-object

I am installing Media Wiki and the installation itself went without any problems, but when trying to configure it I get these errors:

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 * MediaWiki 1.16.0 Installation

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Checking environment...

Please include all of the lines below when reporting installation problems.

PHP 5.2.14 installed

Found database drivers for: MySQL SQLite

PHP server API is cgi-fcgi; using ugly URLs (index.php?title=Page_Title)

Have XML / Latin1-UTF-8 conversion support.

Session save path (/tmp) appears to be valid.

PHP's memory_limit is 90M bytes.

XCache installed

Found GNU diff3: /usr/bin/diff3.

Found ImageMagick: /usr/bin/convert; image thumbnailing will be enabled if you enable uploads.

Found GD graphics library built-in.

Installation directory: /home/rnbiblecom/wiki.biblecomic.net

Script URI path:

Installing MediaWiki with php file extensions

Environment checked. You can install MediaWiki.

Generating configuration file...

Database type: MySQL

Loading class: DatabaseMysql

Attempting to connect to database server as wikibiblecomicne...success.

Connected to mysql 5.1.39-log; enabling MySQL 4.1/5.0 charset mode

Database wiki_biblecomic_net exists

There are already MediaWiki tables in this database. Checking if updates are needed...

...ipblocks table does not exist, skipping new field patch

...ipblocks table does not exist, skipping new field patch

...already have interwiki table

Notice: Trying to get property of non-object in /home/rnbiblecom/wiki.biblecomic.net/includes/db/DatabaseMysql.php on line 264

Warning: mysql_num_fields: supplied argument is not a valid MySQL result resource in /home/rnbiblecom/wiki.biblecomic.net/includes/db/DatabaseMysql.php on line 264

Fatal error: Call to a member function isMultipleKey on a non-object in /home/rnbiblecom/wiki.biblecomic.net/maintenance/updaters.inc on line 329

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Hoping someone has a suggestion to what I should do, thanks.