Warning: mysql_query() [function.mysql-query]: Unable to save result set in [path]/packages/shop/admin/includes/functions/database.php on line 45
1194 - Table 'osc_customers' is marked as crashed and should be repaired

select count(*) as total from osc_customers c left join osc_address_book a on c.customers_id = a.customers_id and c.customers_default_address_id = a.address_book_id

any ideas on how to fix this?
Thanks!