database errors: duplicate entry ‘2441’ and sql syntax error

I am using version 2.0.2 — I believe and get the database error message listed below on the header intermittently, does anyone know how to resolve this?

WordPress database error: [Duplicate entry ‘2441’ for key 1]
INSERT INTO wp_bas_refer (referer_string) VALUES (‘http://images.google.com/imgres?imgurl=http://juliapelish.com/blog/wp-content/uploads/2008/08/van-dusen-gardens-wedding-vancouver.jpg&imgrefurl=http://www.juliapelish.com/blog/&usg=__0ur7SWep_ku-3UcksO2OKvim_1g=&h=418&w=280&sz=46&hl=en&start=36&um=1&tbnid=zMPGJHik94eExM:&tbnh=125&tbnw=84&prev=/images%3Fq%3Dgarden%2Bwedding%2Byoung%2Bcouple%26ndsp%3D20%26hl%3Den%26safe%3Dactive%26client%3Dfirefox-a%26channel%3Ds%26rls%3Dorg.mozilla:en-US:official%26sa%3DN%26start%3D20%26um%3D1’);

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘ 2, 2953, ‘2009-04-27 14:37:04′)’ at line 1]
INSERT INTO wp_bas_visitors (visit_ip, referer, osystem, useragent, lasthere) VALUES (-812628414, , 2, 2953, ‘2009-04-27 14:37:04’);

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘AND referer = referer_id AND osystem = os_id AND useragent = ua_]
SELECT * FROM wp_bas_visitors, wp_bas_refer, wp_bas_ua, wp_bas_os WHERE visit_id = AND referer = referer_id AND osystem = os_id AND useragent = ua_id

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘ ‘garden+wedding+young+couple’, ‘Google Image Search’)’ at line ]
INSERT INTO wp_bas_searches (search_refer, search_phrase, search_engine) VALUES (, ‘garden+wedding+young+couple’, ‘Google Image Search’);

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘ ‘2009-04-27 14:37:04′, 0, 10)’ at line 1]
INSERT INTO wp_bas_log (visit, stamp, outbound, page) VALUES (, ‘2009-04-27 14:37:04’, 0, 10);