[Crow King]

The game has a file called "localization.txt" that contains all the text that the game displays to the player. It allows the game to be shipped in many different languages without the need to go in and redo all the code. When you see "localization error", that just means that some text in the game wasn't found in the localization file, so it couldn't be converted / translated / localized. It doesn't hurt anything.