Database Query Error - You've Probably Found a Bug

Unable to connect to database.

Please give all the information on this page to your support personnel.

Query Checking for MySQL Extension... failed. The DBMS said this:

The MySQL extension is not available

Debug Backtrace (most recent call first):

/home/bpa/public_html/biblio/classes/Error.php:137 FatalHandler->printBackTrace()
/home/bpa/public_html/biblio/classes/Error.php:105 FatalHandler->dbError('Checking for MySQL Extension...', 'Unable to connect to database.', 'The MySQL extension is not available')
/home/bpa/public_html/biblio/classes/Query.php:19 Fatal->dbError('Checking for MySQL Extension...', 'Unable to connect to database.', 'The MySQL extension is not available')
/home/bpa/public_html/biblio/shared/read_settings.php:21 Query->Query()
/home/bpa/public_html/biblio/shared/common.php:114 require_once('/home/bpa/public_html/biblio/shared/read_settings.php')
/home/bpa/public_html/biblio/opac/index.php:6 require_once('/home/bpa/public_html/biblio/shared/common.php')