XBMC put the cover on, why are the fonts broken?

Question

Kodi

There is an ubuntu operating system with an xbmc interface on the HTPC, I decided to change the look, put a new cover (skin), as a result, there are no fonts at all! how can i get it back now? preferably via console

Answer 1

If a function should not return anything, declare it as not returning a value:
void areaOfASquare() {