Ignore it. That CD likely contained only a PDF manual or a generic multimedia key mapper. You can download those files from Lapcare’s support site using your model number.
Lapcare does not distribute independent keyboard drivers through their website for standard models. Instead: lapcare usb keyboard driver
Dust, crumbs, and debris under the keys can prevent them from registering keystrokes. Use a can of compressed air to clean beneath the keycaps. Ignore it