Internal Server Error

MartiniError: mysqli::real_query(): MySQL server has gone away

    in /var/www/html/martini-git/lib/mysql.php at line 787

#0 [internal function]: ErrorHandler::handleError(2, 'mysqli::real_qu...', '/var/www/html/m...', 787, Array)
#1 /var/www/html/martini-git/lib/mysql.php(787): mysqli->real_query('SELECT  * FROM ...')
#2 /var/www/html/martini-git/lib/mysql.php(317): DatabaseManager->realQuery('SELECT  * FROM ...', NULL, 'm6', false)
#3 /var/www/html/martini-git/lib/mysql.php(1035): DatabaseManager->query('SELECT  * FROM ...', NULL, 'm6', false)
#4 /var/www/html/martini-git/lib/mysql.php(1319): Database->query('SELECT  * FROM ...', NULL)
#5 /var/www/html/martini-git/src/core/Martini.php(1284): Database->getRecords('modules', NULL, Array)
#6 /var/www/html/martini-git/src/core/Martini.php(1332): Martini->assertModuleMap()
#7 /var/www/html/martini-git/src/core/Site.php(587): Martini->getModuleById(141)
#8 /var/www/html/martini-git/src/core/Site.php(564): Site->buildModule(Object(Record), Array, 'news/worcester')
#9 /var/www/html/martini-git/src/core/Site.php(556): Site->buildModuleTree(Array, Object(Record), 'news/worcester')
#10 /var/www/html/martini-git/src/core/Site.php(556): Site->buildModuleTree(Array, Object(Record), 'news')
#11 /var/www/html/martini-git/src/core/Site.php(515): Site->buildModuleTree(Array, Object(Record), '')
#12 /var/www/html/martini-git/src/core/Site.php(648): Site->assertModuleTree()
#13 /var/www/html/martini-git/src/web.php(3527): Site->findModule('/homes/estate_a...', true)
#14 /var/www/html/martini-git/src/web.php(605): RequestHandler->getModule('/homes/estate_a...')
#15 /var/www/html/martini-git/src/web.php(107): RequestHandler->handleRequestInternal(Object(HttpRequest))
#16 /var/www/html/martini-git/lib/http.php(77): RequestHandler->handleRequest(Object(HttpRequest))
#17 /var/www/html/martini-git/htdocs/index.php(155): HttpApplication->run()
#18 {main}