The plugin doesn't appear on the admin menu

Hi,

Encountered a weird problem. I downloaded and activated the Wysija but it doesn’t even appear on the admin menu. I’ve looked everywhere: settings, tools but it’s nowhere to be seen. Tried reinstalling but nothing happens. Is there a way I could “force” the plugin to appear or an internal url I could access it from?
Thanks.

https://www.ads-software.com/extend/plugins/wysija-newsletters/