In here, line 67 is currently:
command="wofi -c ~/.config/wofi/menu -s ~/.config/wofi/sway.css -p \"Windows: \" -d -i --hide-scroll"
But ~/.config/wofi/sway.css
should be ~/.config/wofi/wofi.css
(Also, “Waybar and Wodi” should be “Waybar and Wofi” in the above link and in this link)