#0 [internal function]: __error(2, 'count(): Parame...', '/home/httpd/vho...', 532, Array)
#1 system/modules/pct_customelements/PCT/CustomElements/Core/CustomElement.php(532): count('')
#2 system/modules/pct_customelements/PCT/CustomElements/Frontend/ContentCustomElement.php(162): PCT\CustomElements\Core\CustomElement->addToTemplate(Object(PCT\CustomElements\Core\FrontendTemplate))
#3 system/modules/core/elements/ContentElement.php(261): PCT\CustomElements\Frontend\ContentCustomElement->compile()
#4 system/modules/pct_customelements/PCT/CustomElements/Frontend/ContentCustomElement.php(127): Contao\ContentElement->generate()
#5 system/modules/core/library/Contao/Controller.php(476): PCT\CustomElements\Frontend\ContentCustomElement->generate()
#6 system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'slider')
#7 system/modules/core/modules/Module.php(283): Contao\ModuleArticle->compile()
#8 system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#9 system/modules/core/library/Contao/Controller.php(409): Contao\ModuleArticle->generate(false)
#10 system/modules/core/library/Contao/Controller.php(269): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'slider')
#11 system/modules/core/pages/PageRegular.php(137): Contao\Controller::getFrontendModule('0', 'slider')
#12 system/modules/core/controllers/FrontendIndex.php(267): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#13 index.php(20): Contao\FrontendIndex->run()
#14 {main}

#0 [internal function]: __error(2, 'Cannot modify h...', '/home/httpd/vho...', 294, Array)
#1 system/modules/core/library/Contao/Template.php(294): header('Vary: User-Agen...', false)
#2 system/modules/core/classes/FrontendTemplate.php(121): Contao\Template->output()
#3 system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#4 system/modules/core/controllers/FrontendIndex.php(267): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#5 index.php(20): Contao\FrontendIndex->run()
#6 {main}

#0 [internal function]: __error(2, 'Cannot modify h...', '/home/httpd/vho...', 295, Array)
#1 system/modules/core/library/Contao/Template.php(295): header('Content-Type: t...')
#2 system/modules/core/classes/FrontendTemplate.php(121): Contao\Template->output()
#3 system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#4 system/modules/core/controllers/FrontendIndex.php(267): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#5 index.php(20): Contao\FrontendIndex->run()
#6 {main}