QueryException not captured

Message:
MySQL server has gone away
Error code: 2006
Query:
SELECT * FROM keywords_descarga order by keywordCount DESC limit 30 
		
File: /usr/local/www/common/packages/system/db/mysql/MySQLConnection.php

Line: 162

Stack trace:
#0 /usr/local/www/common/packages/descargas/Keyword.php(31): MySQLConnection->executeQuery('SELECT * FROM k...')
#1 /usr/local/www/depaginas.com.ar/subdomains/descargas/public_html/modules/home/home.php(53): Keyword::mostKeyDesc()
#2 /usr/local/www/depaginas.com.ar/subdomains/descargas/public_html/modules/home/index.php(15): require_once('/usr/local/www/...')
#3 /usr/local/www/depaginas.com.ar/subdomains/descargas/public_html/index.php(103): require_once('/usr/local/www/...')
#4 {main}