XF 2.1 Anyone can help me with this error please?

[eL_]

Server error log

Zend\Feed\Writer\Exception\InvalidArgumentException: Invalid parameter: "name" must be a non-empty string src/vendor/zendframework/zend-feed/src/Writer/AbstractFeed.php:253
Generated by: Unknown account Dec 27, 2019 at 9:29 AM

[SIZE=4]Stack trace[/SIZE]

#0 src/XF/Pub/View/Forum/Rss.php(47): Zend\Feed\Writer\AbstractFeed->setGenerator('')
#1 src/XF/Mvc/Renderer/AbstractRenderer.php(91): XF\Pub\View\Forum\Rss->renderRss()
#2 src/XF/Mvc/Renderer/Xml.php(74): XF\Mvc\Renderer\AbstractRenderer->renderViewObject('XF:Forum\\Rss', '', Array)
#3 src/XF/Mvc/Dispatcher.php(458): XF\Mvc\Renderer\Xml->renderView('XF:Forum\\Rss', '', Array)
#4 src/XF/Mvc/Dispatcher.php(440): XF\Mvc\Dispatcher->renderView(Object(XF\Mvc\Renderer\Rss), Object(XF\Mvc\Reply\View))
#5 src/XF/Mvc/Dispatcher.php(400): XF\Mvc\Dispatcher->renderReply(Object(XF\Mvc\Renderer\Rss), Object(XF\Mvc\Reply\View))
#6 src/XF/Mvc/Dispatcher.php(58): XF\Mvc\Dispatcher->render(Object(XF\Mvc\Reply\View), 'rss')
#7 src/XF/App.php(2184): XF\Mvc\Dispatcher->run()
#8 src/XF.php(391): XF\App->run()
#9 index.php(20): XF::runApp('XF\\Pub\\App')
#10 {main}

[SIZE=4]Request state[/SIZE]

array(4) {
  ["url"] => string(30) "/forums/game-keys.74/index.rss"
  ["referrer"] => bool(false)
  ["_GET"] => array(0) {
  }
  ["_POST"] => array(0) {
  }
}

 

[Paul B]

What do you have set for the Board URL in the ACP?

 

[eL_]

What do you have set for the Board URL in the ACP?

Yes @Brogan , it is set.
You can see how it is set in here: Print Screen

 

[Paul B]

Do you have a board title set?

 

[eL_]

Opz... I think I mes the posts. @Brogan I solve that error. Thank you.