Ocassional Error Receive via Email

Hi,

I have looked in the Appearance -> Navigation for anything that looks wrong but not sure where to look further.

Running 2.4

2017-01-11T10:09:32+00:00 ERR (3): exception 'Omeka_Navigation_Page_Uri_Exception' with message 'Invalid URI for Omeka_Navigation_Page_Uri object: https:///collections/browse' in /var/www/omeka-git/application/libraries/Omeka/Navigation/Page/Uri.php:128
Stack trace:
#0 /var/www/omeka-git/application/libraries/Omeka/Navigation/Page/Uri.php(39): Omeka_Navigation_Page_Uri->_normalizeHref('/collections/br...')
#1 /var/www/omeka-git/application/libraries/Omeka/Navigation.php(465): Omeka_Navigation_Page_Uri->setHref('/collections/br...')
#2 /var/www/omeka-git/application/libraries/Omeka/Navigation.php(69): Omeka_Navigation->_normalizePageRecursive(Array)
#3 /var/www/omeka-git/application/libraries/Zend/Navigation/Container.php(172): Omeka_Navigation->addPage(Array)
#4 /var/www/omeka-git/application/libraries/Zend/Navigation/Container.php(187): Zend_Navigation_Container->addPages(Array)
#5 /var/www/omeka-git/application/libraries/Omeka/Navigation.php(48): Zend_Navigation_Container->setPages(Array)
#6 /var/www/omeka-git/application/libraries/globals.php(2757): Omeka_Navigation->loadAsOption('public_navigati...')
#7 /var/www/omeka-git/themes/fit/common/header.php(67): public_nav_main()
#8 /var/www/omeka-git/application/libraries/Omeka/View.php(117): include('/var/www/omeka-...')
#9 /var/www/omeka-git/application/libraries/Zend/View/Abstract.php(888): Omeka_View->_run('/var/www/omeka-...')
#10 /var/www/omeka-git/application/libraries/Zend/View/Helper/Partial.php(109): Zend_View_Abstract->render('common/header.p...')
#11 [internal function]: Zend_View_Helper_Partial->partial('common/header.p...', Array)
#12 /var/www/omeka-git/application/libraries/Zend/View/Abstract.php(350): call_user_func_array(Array, Array)
#13 /var/www/omeka-git/application/libraries/globals.php(1656): Zend_View_Abstract->__call('partial', Array)
#14 /var/www/omeka-git/application/libraries/globals.php(1656): Omeka_View->partial('common/header.p...', Array)
#15 /var/www/omeka-git/application/libraries/globals.php(1670): common('header', Array)
#16 /var/www/omeka-git/themes/fit/index.php(1): head(Array)
#17 /var/www/omeka-git/application/libraries/Omeka/View.php(117): include('/var/www/omeka-...')
#18 /var/www/omeka-git/application/libraries/Zend/View/Abstract.php(888): Omeka_View->_run('/var/www/omeka-...')
#19 /var/www/omeka-git/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(912): Zend_View_Abstract->render('index.php')
#20 /var/www/omeka-git/application/controllers/IndexController.php(16): Zend_Controller_Action_Helper_ViewRenderer->renderScript('index.php')
#21 /var/www/omeka-git/application/libraries/Zend/Controller/Action.php(516): IndexController->indexAction()
#22 /var/www/omeka-git/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('indexAction')
#23 /var/www/omeka-git/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#24 /var/www/omeka-git/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#25 /var/www/omeka-git/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#26 /var/www/omeka-git/application/libraries/Omeka/Application.php(79): Zend_Application->run()
#27 /var/www/omeka-git/index.php(23): Omeka_Application->run()
#28 {main}

Thanks for any help!