ERROR: MySQL server has gone away:

SELECT
	conference_items.channel_id
FROM
	conference_items
WHERE
	1 = 1


9. [ERROR] rude\exception::error()         called at /var/www/medsites/shared/includes/rude-php/src/database/rude-database.php:94
8. [OK]    rude\database->query()          called at /var/www/medsites/shared/includes/rude-php/src/database/query/rude-query-select.php:43
7. [OK]    rude\query_select->query()      called at /var/www/medsites/shared/modules/mod_glob_channel.php:96
6. [OK]    glob_render_channel()           called at /var/www/medsites/shared/modules/mod_glob_channel.php:516
5. [OK]    include()                       called at /var/www/medsites/shared/includes/frontend.html.php:338
4. [OK]    modules_html::modoutput_naked() called at /var/www/medsites/shared/includes/frontend.html.php:117
3. [OK]    modules_html::module2()         called at /var/www/medsites/shared/includes/frontend.php:186
2. [OK]    mosLoadModules()                called at /var/www/medsites/hospimedica/templates/rhuk_solarflare_ii/index.php:166
1. [OK]    require_once()                  called at /var/www/medsites/hospimedica/index.php:406