An exception occured while bootstrapping the application.

The PDO extension is required for this adapter but the extension is not loaded
Stack Trace:
#0 /home/senso13/public_html/library/Zend/Db/Adapter/Abstract.php(417): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /home/senso13/public_html/library/Zend/Db/Adapter/Pdo/Abstract.php(230): Zend_Db_Adapter_Abstract->query('SET NAMES 'utf8...', Array)
#2 /home/senso13/public_html/application_dir/bootstrap.php(233): Zend_Db_Adapter_Pdo_Abstract->query('SET NAMES 'utf8...')
#3 /home/senso13/public_html/index.php(9): require('/home/senso13/p...')
#4 {main}