Unable to use old settings on an update

[Fragglerock]

Hello,

Hello,
My Teamspeak3 server hosted on a server at my home had crashed (I was unable to start it). So I thought maybe there was an update. So I download and install the latest version (unzip and copy / paste directly into the Teamspeak3 folder keeping the old folders, copied for security, in another folder).
When I launch Teamspeak, the window of a very fresh installation appears as if I had lost the settings.
I backed up the files:
-ts3server.sqlitedb
-.ts3server_licence_accepted
-query_ip_blacklist.txt
-query_ip_whitelist.txt

How do I recover my server? Thank you for your help.

Edit:
I read this post:

Backup your server instance or migrate onto a new location

This thread will explain how create a backup of your current server instance and all of it’s files. (ignore step 2). And you will see which files are needed to migrate/move your server to a new location / machine (all steps). A simplified version exists in our FAQ but we like to offer you a step by step guide. Fowling steps are an universal solution for every Operation System. It does not matter if you move from Linux to Windows or to Mac OS etc. Stop the current server instance (Do not k…

Somethings are missing (I never seen this files before):
-licensekey.dat
-serverkey.dat
ts3server.ini
ts3db_mariaDB.ini