GigPress error

I have been receiving the following error ever since Dec. when the gigpress plugin was updated. It is displayed on the admin screen as well as below the footer on the website. It is not always there but it does it several times a day. PLEASE help me fix this as it is causing the site to run very slow.

WordPress database error Table ‘wp_gigpress_shows’ already exists for query CREATE TABLE wp_gigpress_shows ( show_id INTEGER(4) AUTO_INCREMENT, show_tour_id INTEGER(4) NOT NULL, show_date DATE NOT NULL, show_multi INTEGER(1), show_time TIME NOT NULL, show_expire DATE NOT NULL, show_address VARCHAR(255), show_locale VARCHAR(255) NOT NULL, show_country VARCHAR(2) NOT NULL, show_price VARCHAR(32) DEFAULT ‘Not sure’, show_tix_url VARCHAR(255), show_tix_phone VARCHAR(255), show_venue VARCHAR(255) DEFAULT ‘TBA’ NOT NULL, show_venue_url VARCHAR(255), show_venue_phone VARCHAR(255), show_ages ENUM(‘All Ages’,’No minors’,’All Ages/Licensed’,’Not sure’), show_notes TEXT, show_related BIGINT(20), show_status VARCHAR(32) DEFAULT ‘active’, show_tour_restore INTEGER(1) DEFAULT 0, PRIMARY KEY (show_id) ) DEFAULT CHARACTER SET utf8 made by require_once, require_once, require_once, require_once, include_once, require, dbDelta