Themis was working fine and now is showing this message on article pages:

syntax error, unexpected 'elseif' (T_ELSEIF), expecting end of file

I turn on the debugger and this what is spills out:

Call stack

Function Location

1 () JROOT/templates/themis/html/com_content/article/default.php:170 2 Joomla\CMS\MVC\View\HtmlView->loadTemplate() JROOT/libraries/src/MVC/View/HtmlView.php:218 3 Joomla\CMS\MVC\View\HtmlView->display() JROOT/components/com_content/src/View/Article/HtmlView.php:257 4 Joomla\Component\Content\Site\View\Article\HtmlView->display() JROOT/libraries/src/MVC/Controller/BaseController.php:692 5 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/components/com_content/src/Controller/DisplayController.php:125 6 Joomla\Component\Content\Site\Controller\DisplayController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:730 7 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/libraries/src/Dispatcher/ComponentDispatcher.php:146 8 Joomla\CMS\Dispatcher\ComponentDispatcher->dispatch() JROOT/components/com_content/src/Dispatcher/Dispatcher.php:55 9 Joomla\Component\Content\Site\Dispatcher\Dispatcher->dispatch() JROOT/libraries/src/Component/ComponentHelper.php:389 10 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:206 11 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:245 12 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:278 13 Joomla\CMS\Application\CMSApplication->execute() JROOT/includes/app.php:63 14 require_once() JROOT/index.php:32