error of sessions table after I added more columns to it

[ajaysingh]

I am facing this error -

1136 Column count doesn't match value count at row 1
in:
[insert into sessions values ('93a3e60394e1ba7edc3b8daa9a57308c', '1251293276', 'securityToken|s:32:\"cb8d5cc6a2a770a05c41aabb3ece6481\";customers_host_address| s:9:\"localhost\";cartID|s:0:\"\";cart|O:12:\"shoppingCart\":8:{s:8:\"contents\" ;a:0:{}s:5:\"total\";i:0;s:6:\"weight\";i:0;s:12:\"content_type\";b:0;s:18:\"fre e_shipping_item\";i:0;s:20:\"free_shipping_weight\";i:0;s:19:\"free_shipping_pri ce\";i:0;s:9:\"observers\";a:0:{}}navigation|O:17:\"navigationHistory\":3:{s:4:\ "path\";a:1:{i:0;a:4:{s:4:\"page\";s:5:\"index\";s:4:\"mode\";s:6:\"NONSSL\";s:3 :\"get\";s:0:\"\";s:4:\"post\";a:0:{}}}s:8:\"snapshot\";a:0:{}s:9:\"observers\"; a:0:{}}check_valid|s:4:\"true\";language|s:7:\"english\";languages_id|s:1:\"1\"; languages_code|s:2:\"en\";currency|s:3:\"USD\";today_is|s:10:\"2009-08-26\";updateExpirations|b:1;session_counter|b:1;customers_ip_address|s:9:\"127.0. 0.1\";')]


Due to this I can't add the products in my cart. I've add a new field named site_id in all tables.
can anyone tell where this session makes and inserts the table data ?

Thanks in advance

[DrByte]

I've add a new field named site_id in all tables.

That'll be your problem.
Why are you editing *all* tables' structures?