WordPress database error mentions Atahualpa - can someone tell me what this is?

Hi,

I've been trying to troubleshoot site resource problems. Many days our error log contains thousands of errors. Virtually all of the errors in the log reference Atahualpa 379. Most errors appear identical and there are often several dozen each second. Can anyone tell me what it means? Is this an Atahualpa issue or something else? If you can give me a hint, I would be most grateful! :-)

We're currently running Atahualpa 3.7.9 on Wordpress 3.5. All plugins are up to date.

Our error log for the last week is 1.7 MB of text. Here's a sample:

[11-Jan-2013 22:52:47] WordPress database error MySQL server has gone away for query SELECT ID FROM wp_posts WHERE post_name LIKE 'wp-comments-post-php%' AND post_type IN ('post', 'page', 'attachment') AND post_status = 'publish' made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), do_action('template_redirect'), call_user_func_array, redirect_canonical, redirect_guess_404_permalink
[11-Jan-2013 22:52:47] WordPress database error MySQL server has gone away for query SELECT t.*, tt.* FROM wp_terms AS t INNER JOIN wp_term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = 'nav_menu' AND t.term_id = 427 LIMIT 1 made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/atahualpa379/index.php'), get_header, locate_template, load_template, require_once('/themes/atahualpa379/header.php'), bfa_header_config, bfa_new_wp3_menus, wp_nav_menu, wp_get_nav_menu_object, get_term
[11-Jan-2013 22:52:47] WordPress database error MySQL server has gone away for query SELECT t.*, tt.* FROM wp_terms AS t INNER JOIN wp_term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = 'nav_menu' AND t.slug = '427' LIMIT 1 made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/atahualpa379/index.php'), get_header, locate_template, load_template, require_once('/themes/atahualpa379/header.php'), bfa_header_config, bfa_new_wp3_menus, wp_nav_menu, wp_get_nav_menu_object, get_term_by
[11-Jan-2013 22:52:47] WordPress database error MySQL server has gone away for query SELECT t.*, tt.* FROM wp_terms AS t INNER JOIN wp_term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = 'nav_menu' AND t.name = '427' LIMIT 1 made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/atahualpa379/index.php'), get_header, locate_template, load_template, require_once('/themes/atahualpa379/header.php'), bfa_header_config, bfa_new_wp3_menus, wp_nav_menu, wp_get_nav_menu_object, get_term_by
[11-Jan-2013 22:52:47] WordPress database error MySQL server has gone away for query SELECT * FROM wp_posts WHERE (post_type = 'page' AND post_status = 'publish') ORDER BY menu_order,wp_posts.post_title ASC made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/atahualpa379/index.php'), get_header, locate_template, load_template, require_once('/themes/atahualpa379/header.php'), bfa_header_config, bfa_new_wp3_menus, wp_nav_menu, call_user_func, wp_page_menu, wp_list_pages, get_pages
[11-Jan-2013 22:52:47] WordPress database error MySQL server has gone away for query SELECT t.*, tt.* FROM wp_terms AS t INNER JOIN wp_term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = 'nav_menu' AND t.term_id = 426 LIMIT 1 made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/atahualpa379/index.php'), get_header, locate_template, load_template, require_once('/themes/atahualpa379/header.php'), bfa_header_config, bfa_new_wp3_menus, wp_nav_menu, wp_get_nav_menu_object, get_term
[11-Jan-2013 22:52:47] WordPress database error MySQL server has gone away for query SELECT t.*, tt.* FROM wp_terms AS t INNER JOIN wp_term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = 'nav_menu' AND t.slug = '426' LIMIT 1 made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/atahualpa379/index.php'), get_header, locate_template, load_template, require_once('/themes/atahualpa379/header.php'), bfa_header_config, bfa_new_wp3_menus, wp_nav_menu, wp_get_nav_menu_object, get_term_by


Thanks in advance for any information you can share!

Michael