Error Codes

I have been receiving these errors for a while. Dont know how to read them so would appreciate some help as to what they mean.

) AND wp_posts.post_type IN ('post', 'page', 'attachment', 'portfolio', 'template', 'dlp_document') AND ((wp_posts.post_status = 'publish')) GROUP BY wp_posts.ID ORDER BY wp_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('pre_get_posts'), WP_Hook->do_action, WP_Hook->apply_filters, rcp_hide_premium_posts, rcp_get_restricted_post_ids, get_posts, WP_Query->query, WP_Query->get_posts
( mt2.meta_key = 'rcp_access_level' AND mt2.meta_value != 'None' )
OR
( mt1.meta_key = 'rcp_user_level' AND mt1.meta_value != 'All' )
OR
wp_postmeta.meta_key = 'rcp_subscription_level'
OR
( wp_postmeta.meta_key = '_is_paid' AND wp_postmeta.meta_value = '1' )
[31-May-2021 18:39:12 UTC] WordPress database error Lost connection to MySQL server during query for query SELECT wp_posts.ID FROM wp_posts INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) INNER JOIN wp_postmeta AS mt1 ON ( wp_posts.ID = mt1.post_id ) INNER JOIN wp_postmeta AS mt2 ON ( wp_posts.ID = mt2.post_id ) WHERE 1=1 AND (
) AND wp_posts.post_type IN ('post', 'page', 'attachment', 'portfolio', 'template', 'dlp_document') AND ((wp_posts.post_status = 'publish')) GROUP BY wp_posts.ID ORDER BY wp_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('pre_get_posts'), WP_Hook->do_action, WP_Hook->apply_filters, rcp_hide_premium_posts, rcp_get_restricted_post_ids, get_posts, WP_Query->query, WP_Query->get_posts
( mt2.meta_key = 'rcp_access_level' AND mt2.meta_value != 'None' )
OR
( mt1.meta_key = 'rcp_user_level' AND mt1.meta_value != 'All' )
OR
wp_postmeta.meta_key = 'rcp_subscription_level'
OR
( wp_postmeta.meta_key = '_is_paid' AND wp_postmeta.meta_value = '1' )
[31-May-2021 15:55:49 UTC] WordPress database error Lost connection to MySQL server during query for query SELECT wp_posts.ID FROM wp_posts INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) INNER JOIN wp_postmeta AS mt1 ON ( wp_posts.ID = mt1.post_id ) INNER JOIN wp_postmeta AS mt2 ON ( wp_posts.ID = mt2.post_id ) WHERE 1=1 AND (
) AND wp_posts.post_type IN ('post', 'page', 'attachment', 'portfolio', 'template', 'dlp_document') AND ((wp_posts.post_status = 'publish')) GROUP BY wp_posts.ID ORDER BY wp_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('pre_get_posts'), WP_Hook->do_action, WP_Hook->apply_filters, rcp_hide_premium_posts, rcp_get_restricted_post_ids, get_posts, WP_Query->query, WP_Query->get_posts
( mt2.meta_key = 'rcp_access_level' AND mt2.meta_value != 'None' )
OR
( mt1.meta_key = 'rcp_user_level' AND mt1.meta_value != 'All' )
OR
wp_postmeta.meta_key = 'rcp_subscription_level'
OR
( wp_postmeta.meta_key = '_is_paid' AND wp_postmeta.meta_value = '1' )
[31-May-2021 14:45:29 UTC] WordPress database error Lost connection to MySQL server during query for query SELECT wp_posts.ID FROM wp_posts INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) INNER JOIN wp_postmeta AS mt1 ON ( wp_posts.ID = mt1.post_id ) INNER JOIN wp_postmeta AS mt2 ON ( wp_posts.ID = mt2.post_id ) WHERE 1=1 AND (
) AND wp_posts.post_type IN ('post', 'page', 'attachment', 'portfolio', 'template', 'dlp_document') AND ((wp_posts.post_status = 'publish')) GROUP BY wp_posts.ID ORDER BY wp_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('pre_get_posts'), WP_Hook->do_action, WP_Hook->apply_filters, rcp_hide_premium_posts, rcp_get_restricted_post_ids, get_posts, WP_Query->query, WP_Query->get_posts
( mt2.meta_key = 'rcp_access_level' AND mt2.meta_value != 'None' )
OR
( mt1.meta_key = 'rcp_user_level' AND mt1.meta_value != 'All' )
OR
wp_postmeta.meta_key = 'rcp_subscription_level'
OR
( wp_postmeta.meta_key = '_is_paid' AND wp_postmeta.meta_value = '1' )

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