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0 - Call to a member function get() on null

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Call to a member function get() on null
/var/www/ow/modules/mod_menu/tmpl/default_heading.php:38

Call stack
#	Function	Location
1	()	JROOT/modules/mod_menu/tmpl/default_heading.php:38
2	include()	JROOT/components/com_aishumenu/helpers/header.php:14
3	HeaderHelper::displayMenuItem()	JROOT/components/com_aishumenu/views/subnav/tmpl/default.php:34
4	displayNav()	JROOT/components/com_aishumenu/views/subnav/tmpl/default.php:29
5	displayNav()	JROOT/components/com_aishumenu/views/subnav/tmpl/default.php:85
6	include()	JROOT/libraries/src/MVC/View/HtmlView.php:410
7	Joomla\CMS\MVC\View\HtmlView->loadTemplate()	JROOT/libraries/src/MVC/View/HtmlView.php:203
8	Joomla\CMS\MVC\View\HtmlView->display()	JROOT/components/com_aishumenu/views/subnav/view.raw.php:38
9	AISHUMenuViewSubNav->display()	JROOT/libraries/src/MVC/Controller/BaseController.php:645
10	Joomla\CMS\MVC\Controller\BaseController->display()	JROOT/components/com_aishumenu/controllers/api.raw.php:36
11	AISHUMenuControllerApi->display()	JROOT/components/com_aishumenu/controllers/api.raw.php:20
12	AISHUMenuControllerApi->SubNav()	JROOT/libraries/src/MVC/Controller/BaseController.php:678
13	Joomla\CMS\MVC\Controller\BaseController->execute()	JROOT/components/com_aishumenu/aishumenu.php:12
14	require_once()	JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:71
15	Joomla\CMS\Dispatcher\LegacyComponentDispatcher::Joomla\CMS\Dispatcher\{closure}()	JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:73
16	Joomla\CMS\Dispatcher\LegacyComponentDispatcher->dispatch()	JROOT/libraries/src/Component/ComponentHelper.php:361
17	Joomla\CMS\Component\ComponentHelper::renderComponent()	JROOT/libraries/src/Application/SiteApplication.php:208
18	Joomla\CMS\Application\SiteApplication->dispatch()	JROOT/libraries/src/Application/SiteApplication.php:249
19	Joomla\CMS\Application\SiteApplication->doExecute()	JROOT/libraries/src/Application/CMSApplication.php:293
20	Joomla\CMS\Application\CMSApplication->execute()	JROOT/includes/app.php:61
21	require_once()	JROOT/index.php:32

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