Events+ Calendar - Navigation Has Disappeared

On my Calendar page I am using shortcode [eab_calendar navigation="yes"] but the navigation at the top has disappeared, along with the image of the Legend.

There was an issue with this before but I thought it was resolved after I reinstalled the plugin and started again. I believe it has to do with categories and slugs but I just don't know how to fix it. Sorry.

Would appreciate any help.
Support access is granted.