The most likely scenario is that you’re a member of an association or club and that’s how you got access to the database. If you want to know more about this you can contact the manager of your administration.
It can also be that you are the manager of the database, but you accidentally changed the settings. As you need the menu Management to change this and you do not have access to this anymore, your only option is to contact our helpdesk via support@zooeasy.com to solve this.