JSON RPC error at method package.producer.getProducerFromRewriteTitle

#0  JsonRpcClient->exec(package.producer.getProducerFromRewriteTitle, lyzarske-bryle-alpina-carvy-jr-cervene-4) called at [/var/www/limal/data/www/_repos/production_new/shared/inc/Eshop/UrlResolving/UrlResolver.php:497]
#1  Eshop\UrlResolving\UrlResolver->getProducerByRewriteTitle(lyzarske-bryle-alpina-carvy-jr-cervene-4) called at [/var/www/limal/data/www/_repos/production_new/shared/inc/Eshop/UrlResolving/UrlResolver.php:368]
#2  Eshop\UrlResolving\UrlResolver->getCategoryOrProductListPair(sjezdove-lyzovani, lyzarske-bryle-alpina-carvy-jr-cervene-4) called at [/var/www/limal/data/www/_repos/production_new/shared/inc/Eshop/UrlResolving/UrlResolver.php:193]
#3  Eshop\UrlResolving\UrlResolver->generatePair(sjezdove-lyzovani, lyzarske-bryle-alpina-carvy-jr-cervene-4) called at [/var/www/limal/data/www/_repos/production_new/shared/inc/Eshop/UrlResolving/UrlResolver.php:87]
#4  Eshop\UrlResolving\UrlResolver->getControllerActionPair(sjezdove-lyzovani, lyzarske-bryle-alpina-carvy-jr-cervene-4) called at [/var/www/limal/data/www/_repos/production_new/eshop/index.php:24]

Server JSON response:

Unable to connect to DB: mysqli_connect(): (08004/1040): Too many connections
#0 [internal function]: exceptionErrorHandler(2, 'mysqli_connect(...', '/var/www/limal/...', 78, Array)
#1 /var/www/limal/data/www/_repos/production_new/shared/libs/db/db.mysql.class.php(78): mysqli_connect('localhost', 'auctionmaster', 'oJRqQqSw', 'auctionmaster')
#2 /var/www/limal/data/www/_repos/production_new/shared/libs/db/db.generic.class.php(141): MySQLDb->_connect()
#3 /var/www/limal/data/www/_repos/production_new/shared/libs/db/db.mysql.class.php(25): GenericDb->connect('localhost', 'auctionmaster', 'oJRqQqSw', 'auctionmaster')
#4 /var/www/limal/data/www/_repos/production_new/shared/libs/db/db.mysql.class.php(43): MySQLDb->__construct()
#5 /var/www/limal/data/www/_repos/production_new/api/classes/packageproducerfactory.class.php(302): MySQLDb::init()
#6 [internal function]: PackageProducerFactory::getProducerFromRewriteTitle('lyzarske-bryle-...')
#7 /var/www/limal/data/www/_repos/production_new/api/libs/JsonRpcServer.class.php(244): call_user_func_array(Array, Array)
#8 /var/www/limal/data/www/_repos/production_new/api/libs/JsonRpcServer.class.php(179): JsonRpcServer->call('package.produce...', Array)
#9 /var/www/limal/data/www/_repos/production_new/api/server.php(8): JsonRpcServer->process()
#10 {main}