Parse Error – Unexpected String

I just installed this plugin and it won’t activate because there is a parse error on line 29 in the autostock.php file.

Lines 29 & 30 are as follows:

namespace Autostock;
use Autostock;

When I comment out these two lines, the plugin activates but fails to show in the main sidebar menu in WordPress.

I know some about PHP, but I don’t know enough about using “namespace”. As I read though, there is a lot reference to “Class” usage with namespace and there is no such reference in your php file for the plugin.

Is there something missing here?

https://www.ads-software.com/plugins/autostock/