Hi I checked the package but i do not have such issues , It seems the update table does not present in your DB . You may try below query in phpmyadmin
DROP TABLE ijrbeg_updates;
CREATE TABLE IF NOT EXISTS jrbeg_updates (
update_id int(11) NOT NULL AUTO_INCREMENT,
update_site_id int(11) DEFAULT 0,
extension_id int(11) DEFAULT 0,
name varchar(100) DEFAULT ”,
description text NOT NULL,
element varchar(100) DEFAULT ”,
type varchar(20) DEFAULT ”,
folder varchar(20) DEFAULT ”,
client_id tinyint(3) DEFAULT 0,
version varchar(32) DEFAULT ”,
data text NOT NULL,
detailsurl text NOT NULL,
infourl text NOT NULL,
extra_query varchar(1000) DEFAULT ”,
PRIMARY KEY (update_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT=’Available Updates’;
And then Try repairing your database by going to: Joomla backend >> Extension Manager >> Database Or http://www.YOUR_SITE.COM/administrator/index.php?option=com_installer&view=database
Click on Fix if there is any error .