XF 2.3 Error rendering navigation: Too many connections

[Levina]

So I have a full page of server errors with "Too many connections".

We are a small forum and particularly at that time of (my) night, it's real quiet, not much traffic so not getting this. Unless it's caused by spambots?

Do I need to worry about this or can I just delete the errors and forget about it?



Copy/paste of a stack trace:

• XF\Db\Exception: Error rendering navigation: Too many connections
• src/XF/Db/Mysqli/Adapter.php:172
• Generated by: Unknown account
• 17 September 2025 at 04:02

Stack trace​

#0 src/XF/Db/Mysqli/Adapter.php(31): XF\Db\Mysqli\Adapter->makeConnection(Array)
#1 src/XF/Db/AbstractAdapter.php(62): XF\Db\Mysqli\Adapter->getConnection()
#2 src/XF/Db/Mysqli/Adapter.php(116): XF\Db\AbstractAdapter->connect()
#3 src/XF/Db/AbstractAdapter.php(518): XF\Db\Mysqli\Adapter->escapeString('node')
#4 src/XF/Mvc/Entity/Finder.php(912): XF\Db\AbstractAdapter->quote('node')
#5 src/XF/Mvc/Entity/Finder.php(672): XF\Mvc\Entity\Finder->join('Permissions|1', true, false, false)
#6 src/XF/Mvc/Entity/Manager.php(223): XF\Mvc\Entity\Finder->with(Array)
#7 src/XF/Navigation/NodeType.php(222): XF\Mvc\Entity\Manager->findByIds('XF\\Entity\\Node', Array, Array)
#8 src/XF/Navigation/NodeType.php(140): XF\Navigation\NodeType::loadPendingNodeData()
#9 internal_data/code_cache/navigation_cache.php(113): XF\Navigation\NodeType::displayNodeExtended(78, 'home')
#10 src/XF/Template/Templater.php(8170): XF\Pub\App->{closure}(Object(XF\Template\Templater), 'xfrm', Array)
#11 src/XF/Pub/App.php(625): XF\Template\Templater->renderNavigationClosure(Object(Closure), 'xfrm', Array)
#12 src/XF/Pub/App.php(576): XF\Pub\App->getNavigation(Array, 'xfrm')
#13 src/XF/App.php(2571): XF\Pub\App->renderPageHtml('

<div class="b...', Array, Object(XF\Mvc\Reply\Error), Object(XF\Mvc\Renderer\Html))
#14 src/XF/Mvc/Dispatcher.php(414): XF\App->renderPage('

<div class="b...', Object(XF\Mvc\Reply\Error), Object(XF\Mvc\Renderer\Html))
#15 src/XF/Mvc/Dispatcher.php(66): XF\Mvc\Dispatcher->render(Object(XF\Mvc\Reply\Error), 'html')
#16 src/XF/App.php(2824): XF\Mvc\Dispatcher->run()
#17 src/XF.php(806): XF\App->run()
#18 index.php(23): XF::runApp('XF\\Pub\\App')
#19 {main}

Request state​

array(4) {
["url"] => string(36) "/resources/gimp-tutorials.12/reviews"
["referrer"] => bool(false)
["_GET"] => array(1) {
["/resources/gimp-tutorials_12/reviews"] => string(0) ""
}
["_POST"] => array(0) {
}
}