Moving a WordPress website from one server to another

Yes you can. Check out this article from the Codex. If you will be using a new domain the chapter is named Changing Your Domain Name and URLs; if you won’t use a new domain name use Keeping Your Domain Name and URLs.

Edit: You must use the entire wp-content folder and not only the themes folder. If you use only the themes folder you will lose the files in the Media Library.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)