This error hapens if the wa_settings table falils to be created.
Run the following SQL Command using PHPMyAdmin to create the wa_settings table:
CREATE TABLE IF NOT EXISTS wa_settings (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(50) COLLATE latin1_bin DEFAULT NULL,
`type` varchar(50) COLLATE latin1_bin DEFAULT NULL,
`options` text COLLATE latin1_bin,
`value` varchar(255) COLLATE latin1_bin DEFAULT NULL,
`grp` varchar(50) COLLATE latin1_bin DEFAULT NULL,
`subcategory` varchar(50) COLLATE latin1_bin DEFAULT NULL,
`cond` varchar(255) COLLATE latin1_bin DEFAULT NULL,
`description` varchar(255) COLLATE latin1_bin DEFAULT NULL,
`variable` varchar(50) COLLATE latin1_bin DEFAULT NULL,
`weight` float DEFAULT NULL,
`spry_args` text COLLATE latin1_bin,
`spry_error` text COLLATE latin1_bin,
`help_text` text COLLATE latin1_bin,
PRIMARY KEY (id)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin;
INSERT INTO `wa_settings` (`name`,`type`,`options`,`value`,`grp`,`subcategory`,`cond`,`description`,`variable`,`weight`,`spry_args`,`spry_error`,`help_text`)
VALUES
('Site Name', NULL, NULL, 'My Site', NULL, NULL, NULL, NULL,'Site_Name', NULL, NULL, NULL, NULL),
('Serial Number', NULL, NULL, '@@serial_number@@', NULL, NULL, NULL, NULL,'PCMS_Serial', NULL, NULL, NULL, NULL),
('Image Upload Folder', NULL, NULL, 'files', NULL, NULL, NULL, NULL, 'images_folder', NULL, NULL, NULL, NULL),
('Disable Images Upload', NULL, NULL, 0, NULL, NULL, NULL, NULL, 'dis_images_upload', NULL, NULL, NULL, NULL);