Cannot remove server when creating a new project

Hello,

A few days ago one of my translation agencies asked me to connect to a Trados Groupshare server, but the connection failed.

Nevertheless, everytime when I'm creating a project now, I get this annoing notification:

How can I get rid of this? I uninstalled and reinstalled Trados, but that didn't remove this notification.

I also went to "File" and searched for "Severs", but that category isn't there in my SDL Trados Studio Freelance 2017.

What can I do?

Kind regards,

Malgorzata