Fatal error: Uncaught InvalidArgumentException: Constant name is expected. in /home/spletnestrani/public_html/lib/internal/Magento/Framework/Data/Argument/Interpreter/Constant.php:23 Stack trace: #0 /home/spletnestrani/public_html/lib/internal/Magento/Framework/App/Arguments/ArgumentInterpreter.php(35): Magento\Framework\Data\Argument\Interpreter\Constant->evaluate(Array) #1 /home/spletnestrani/public_html/lib/internal/Magento/Framework/Data/Argument/Interpreter/Composite.php(61): Magento\Framework\App\Arguments\ArgumentInterpreter->evaluate(Array) #2 /home/spletnestrani/public_html/lib/internal/Magento/Framework/ObjectManager/Config/Mapper/Dom.php(102): Magento\Framework\Data\Argument\Interpreter\Composite->evaluate(Array) #3 /home/spletnestrani/public_html/lib/internal/Magento/Framework/Config/Reader/Filesystem.php(175): Magento\Framework\ObjectManager\Config\Mapper\Dom->convert(Object(DOMDocument)) #4 /home/spletnestrani/public_html/lib/internal/Magento/Framework/Config/Reader/Filesystem.php(131): Magento\Framework\Con in /home/spletnestrani/public_html/lib/internal/Magento/Framework/App/ObjectManagerFactory.php on line 277