( ! ) Fatal error: Uncaught Error: Call to undefined function Safe\class_alias() in /var/www/magento/vendor/sabberworm/php-css-parser/src/Rule/Rule.php on line 16
( ! ) Error: Call to undefined function Safe\class_alias() in /var/www/magento/vendor/sabberworm/php-css-parser/src/Rule/Rule.php on line 16
Call Stack
#	Time	Memory	Function	Location
1	0.0000	361608	{main}( )	.../index.php:0
2	0.0003	363688	require_once( '/var/www/magento/app/Mage.php )	.../index.php:50
3	0.0004	366408	require_once( '/var/www/magento/vendor/autoload.php )	.../Mage.php:51
4	0.0004	366440	ComposerAutoloaderInitb392beb450ffe42463bbb0b69662d9e2::getLoader( )	.../autoload.php:22
5	0.0012	392664	{closure:/var/www/magento/vendor/composer/autoload_real.php:39-45}( $fileIdentifier = '0174385c3be07e86008907d06ee66531', $file = '/var/www/magento/vendor/composer/../sabberworm/php-css-parser/src/Rule/Rule.php' )	.../autoload_real.php:47
6	0.0012	393208	require( '/var/www/magento/vendor/sabberworm/php-css-parser/src/Rule/Rule.php )	.../autoload_real.php:43