Problems migrating WordPress with a given .zip

Hi!

I have a friend who had a wordpress and wanted to change domain/hosting. Before it expires he downloaded by FTP all files and made a DataBase backup.

Now, he doesnt know how to make it work again and asked me for some help, but I can’t make it work neither…

As I’ve said, I have a .zip with all FTP wordpress files (suposed) and a .sql backup of the database.

So to restore it I’ve done this:
· Create a database on the new hosting and import the .sql
· Uncompress and upload all folders/files of the .zip
· Link wp-config.php with the new database name and password

So what I get is a “working” website which theme and design is not working as expected and special characters neither (spanish language).

If I enter /wp-admin I see lots of errors like ” * is deprecated, use * instead” etc…

I am missing something? Maybe ha hasnt copied correctly?

Thanks you all!