Fatal error: Uncaught --> Smarty Compiler: Syntax error in template "file:/var/www/clients/client1/web1/web/themes/alysum/templates/catalog/_partials/product-variants.tpl" on line 33 "{assign var='sorted_attributes' value=sortby($group.attributes, 'name')}" unknown function 'sortby' <-- thrown in /var/www/clients/client1/web1/web/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatecompilerbase.php on line 33