Folder name for a pro version of a WordPress.org theme?

It is best to make the Pro version a plugin instead of a theme. That way you don’t have duplicate code bases, and the theme_mods are not split, and the updates are separate.
Put the hooks you need into the free theme, and your Pro plugin will have no trouble.

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