RPI 3+Kali+Piano 2.1 - Problems with displaying via I2S

Does Anyone tried to display artist and title info on 4 line LCD display via I2S. My display is 4 lines blue LCD display (similar like on start page of Volumio - mine has 4 lines). It is with I2S converter based on -PCF8574 Remote 8-bit I/O expander for I 2 C-bus-.
I Can’t display that info. It works with RPI but doesn’t display info about artists from ex. Spotify.
Please Help.