wp-blog-header.php errors in error_log file

My error_log file is flooding with errors as follow:
I didnt find any solution for this. Please suggest a solution.

[01-Oct-2015 14:26:21 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (71)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 ASC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts
[01-Oct-2015 14:26:30 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (71)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 ASC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts
[01-Oct-2015 14:40:51 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (50)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 DESC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts
[01-Oct-2015 14:40:59 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (50)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 DESC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts
[01-Oct-2015 14:53:03 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (186)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 DESC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts
[01-Oct-2015 14:53:03 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (75)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 DESC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts
[01-Oct-2015 15:14:29 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (187)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 ASC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts
[01-Oct-2015 15:14:29 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (75)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 ASC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts
[01-Oct-2015 15:22:38 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (44)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 ASC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts
[01-Oct-2015 15:38:32 UTC] WordPress database error Unknown column ‘jp_postmeta.meta_value’ in ‘order clause’ for query SELECT jp_posts.ID FROM jp_posts INNER JOIN jp_term_relationships ON (jp_posts.ID = jp_term_relationships.object_id) WHERE 1=1 AND (
jp_term_relationships.term_taxonomy_id IN (44)
) AND jp_posts.post_type = ‘product’ AND ((jp_posts.post_status = ‘publish’)) GROUP BY jp_posts.ID ORDER BY jp_postmeta.meta_value+0 ASC, jp_posts.post_date DESC made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, do_action_ref_array, call_user_func_array, WC_Query->pre_get_posts, WC_Query->product_query, apply_filters(‘loop_shop_post_in’), call_user_func_array, WC_Query->layered_nav_query, get_posts, WP_Query->query, WP_Query->get_posts