I have upgraded from 3.10 to 4.0.6 on PHP8 and replaced Helix3 with latest Helix ultimate.
When launching, I get the error on front end:
implode(): Argument #1 ($pieces) must be of type array, string given
If I select "Cassiopeia" as default template instead of Helix Ultimate, the site works!
What do you suggest?
Here is the error text:
Call stack
Function Location
1 () JROOT/libraries/src/Router/SiteRouter.php:479
2 implode() JROOT/libraries/src/Router/SiteRouter.php:479
3 Joomla\CMS\Router\SiteRouter->buildSefRoute() JROOT/libraries/src/Router/Router.php:425
4 Joomla\CMS\Router\Router->processBuildRules() JROOT/libraries/src/Router/Router.php:197
5 Joomla\CMS\Router\Router->build() JROOT/libraries/src/Router/Route.php:145
6 Joomla\CMS\Router\Route::link() JROOT/libraries/src/Router/Route.php:94
7 Joomla\CMS\Router\Route::_() JROOT/plugins/system/helixultimate/src/Core/Classes/HelixultimateMenu.php:212
8 HelixUltimate\Framework\Core\Classes\HelixultimateMenu->initMenu() JROOT/plugins/system/helixultimate/src/Core/Classes/HelixultimateMenu.php:110
9 HelixUltimate\Framework\Core\Classes\HelixultimateMenu->__construct() JROOT/templates/shaper_helixultimate/features/menu.php:61
10 HelixUltimateFeatureMenu->renderFeature() JROOT/templates/shaper_helixultimate/headers/style-1/header.php:99
11 include() JROOT/libraries/src/Layout/FileLayout.php:128
12 Joomla\CMS\Layout\FileLayout->render() JROOT/plugins/system/helixultimate/src/Core/HelixUltimate.php:1712
13 HelixUltimate\Framework\Core\HelixUltimate->getHeaderStyle() JROOT/templates/shaper_helixultimate/index.php:152
14 require() JROOT/libraries/src/Document/HtmlDocument.php:783
15 Joomla\CMS\Document\HtmlDocument->_loadTemplate() JROOT/libraries/src/Document/HtmlDocument.php:842
16 Joomla\CMS\Document\HtmlDocument->_fetchTemplate() JROOT/libraries/src/Document/HtmlDocument.php:645
17 Joomla\CMS\Document\HtmlDocument->parse() JROOT/libraries/src/Application/CMSApplication.php:1022
18 Joomla\CMS\Application\CMSApplication->render() JROOT/libraries/src/Application/SiteApplication.php:804
19 Joomla\CMS\Application\SiteApplication->render() JROOT/libraries/src/Application/CMSApplication.php:284
20 Joomla\CMS\Application\CMSApplication->execute() JROOT/includes/app.php:63
21 require_once() JROOT/index.php:32
