PDOException: SQLSTATE[HY000] [1040] Too many connections
 File=/var/www/vhosts/bundderversicherten.de/app/Models/NestedSet.php
 Line=50
#0 /var/www/vhosts/bundderversicherten.de/app/Models/NestedSet.php(50): PDO->__construct()
#1 /var/www/vhosts/bundderversicherten.de/app/Models/Tree.php(88): App\Models\NestedSet->__construct()
#2 /var/www/vhosts/bundderversicherten.de/app/Models/Tree.php(338): App\Models\Tree->getNestedSet()
#3 /var/www/vhosts/bundderversicherten.de/app/Models/Tree.php(325): App\Models\Tree->getNodesToHierarchyByNodePerma()
#4 /var/www/vhosts/bundderversicherten.de/app/Controllers/Web/BaseController.php(142): App\Models\Tree->getMainNaviNodes()
#5 /var/www/vhosts/bundderversicherten.de/app/Controllers/Web/ContentController.php(467): App\Controllers\Web\BaseController->setTreeNavis()
#6 /var/www/vhosts/bundderversicherten.de/app/Controllers/Web/ContentController.php(176): App\Controllers\Web\ContentController->setView()
#7 [internal function]: App\Controllers\Web\ContentController->indexAction()
#8 [internal function]: Phalcon\Dispatcher\AbstractDispatcher->callActionMethod()
#9 [internal function]: Phalcon\Dispatcher\AbstractDispatcher->dispatch()
#10 /var/www/vhosts/bundderversicherten.de/httpdocs/index.php(94): Phalcon\Mvc\Application->handle()
#11 {main}