Incorrect key file for table '/tmp/#sql_55f5_2.MYI'; try to repair it (126)
Query: SELECT SQL_CALC_FOUND_ROWS products.*, descr1.product as product, MIN(IF(prices.percentage_discount = 0, prices.price, prices.price - (prices.price * prices.percentage_discount)/100)) as price, descr1.short_description, IF(descr1.short_description = '', descr1.full_description, '') as full_description, companies.company as company_name, GROUP_CONCAT(IF(products_categories.link_type = 'M', CONCAT(products_categories.category_id, 'M'), products_categories.category_id)) as category_ids, products_categories.position FROM cscart_products as products LEFT JOIN cscart_product_descriptions as descr1 ON descr1.product_id = products.product_id AND descr1.lang_code = 'FA' LEFT JOIN cscart_product_prices as prices ON prices.product_id = products.product_id AND prices.lower_limit = 1 LEFT JOIN cscart_companies AS companies ON companies.company_id = products.company_id INNER JOIN cscart_products_categories as products_categories ON products_categories.product_id = products.product_id INNER JOIN cscart_categories ON cscart_categories.category_id = products_categories.category_id AND (cscart_categories.usergroup_ids = '' OR FIND_IN_SET(0, cscart_categories.usergroup_ids) OR FIND_IN_SET(1, cscart_categories.usergroup_ids)) AND cscart_categories.status IN ('A', 'H') WHERE 1 AND (companies.status = 'A' OR products.company_id = 0) AND (products.usergroup_ids = '' OR FIND_IN_SET(0, products.usergroup_ids) OR FIND_IN_SET(1, products.usergroup_ids)) AND products.status IN ('A') AND prices.usergroup_id IN (0, 0, 1) GROUP BY products.product_id ORDER BY products.timestamp desc LIMIT 1888, 16
Ask your server administrator to repair broken tables.
it dos not fix whit repair full databases
My guess would be that you are running out of some critical resource on the server and that is causing mySQL to NOT complete its operation properly and therefore leaves the key file (the table index) corrupt.
Your server administrator should be able to address this for you. It is internal to the system or mySQL. It has nothing to do with cs-cart.