Warning: PDOStatement::execute(): MySQL server has gone away  in /var/www/html/lib/Zend/Db/Statement/Pdo.php on line 228

#0 [internal function]: mageCoreErrorHandler(2, 'PDOStatement::e...', '/var/www/html/l...', 228, Array)
#1 /var/www/html/lib/Zend/Db/Statement/Pdo.php(228): PDOStatement->execute(Array)
#2 /var/www/html/lib/Varien/Db/Statement/Pdo/Mysql.php(110): Zend_Db_Statement_Pdo->_execute(Array)
#3 /var/www/html/app/code/core/Zend/Db/Statement.php(291): Varien_Db_Statement_Pdo_Mysql->_execute(Array)
#4 /var/www/html/lib/Zend/Db/Adapter/Abstract.php(480): Zend_Db_Statement->execute(Array)
#5 /var/www/html/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SELECT `index_p...', Array)
#6 /var/www/html/lib/Varien/Db/Adapter/Pdo/Mysql.php(504): Zend_Db_Adapter_Pdo_Abstract->query('SELECT `index_p...', Array)
#7 /var/www/html/lib/Zend/Db/Adapter/Abstract.php(794): Varien_Db_Adapter_Pdo_Mysql->query('SELECT `index_p...', Array)
#8 /var/www/html/app/code/core/Mage/Index/Model/Resource/Setup.php(66): Zend_Db_Adapter_Abstract->fetchCol(Object(Varien_Db_Select))
#9 /var/www/html/app/code/core/Mage/Index/Model/Resource/Setup.php(45): Mage_Index_Model_Resource_Setup->_syncIndexes()
#10 /var/www/html/app/code/core/Mage/Core/Model/Resource/Setup.php(235): Mage_Index_Model_Resource_Setup->applyUpdates()
#11 /var/www/html/app/code/core/Mage/Core/Model/App.php(444): Mage_Core_Model_Resource_Setup::applyAllUpdates()
#12 /var/www/html/app/code/core/Mage/Core/Model/App.php(370): Mage_Core_Model_App->_initModules()
#13 /var/www/html/app/Mage.php(686): Mage_Core_Model_App->run(Array)
#14 /var/www/html/index.php(84): Mage::run('', 'store')
#15 {main}