Spotify allows disabling “shuffle” from the “what's-playing-now” screen. To get to this screen, tap the song that is playing, in the play banner at the bottom of the screen. When the shuffle sign is green with a dot under it,  shuffle is activated. 

It is important to check this button when a playlist is associated with a figurine or token as this will be remembered by Jooki, even when the shuffle status is changed afterwards. If shuffle was on and you would like to change this, please start again the association process of that playlist with this figurine/token, checking the shuffling button shows the option you want.