[How to do instruction] 128x64 OLED with Song Status and Spectrum Display on Raspberry Pi

[ROCH23]

Adrian, tried typing the command in SSH git clone -b offset_fix https://github.com/antiprism/mpd_oled.git
grep reset_offset main.cpp

Last login: Mon Mar 29 21:52:38 2021 from 192.168.0.137
pi@moode:~ $ git clone -b offset_fix https://github.com/antiprism/mpd_oled.git
fatal: destination path 'mpd_oled' already exists and is not an empty directory.
pi@moode:~ $ grep reset_offset main.cpp
grep: main.cpp: No such file or directory
pi@moode:~ $ Last login: Mon Mar 29 21:52:38 2021 from 192.168.0.137
pi@moode:~ $
tried changing the display setting from mpd_oled -o 3 to 'mpd_oled -o3, didn't help!