Issues with Site Categoris Plugin

1. when a user is signing up on my multisite, and selects a category, it doesnt get added automatically.

2. Even when its done through the admin: settings-site categories, it shows that there is something there, but the link is clicked on the store category main page it says nothing found:

PS: my settings are all good, it does thesame thing wether or not it is set to permalink "yes" or "no", and the plugin is multisite enabled.

Please fix issue. Thanks.