Ldo leviathan

RatOS for voron 2.4r2 with Ldo leviathan and Btt sb2209; no firmware issue at least for now; the only issue so far is with the config.cfg.
I've got issue with klipper and tmc 5160. I'm at an early stage before swapping this card to my voron. Klipper reports: ERROR

Option 'x_step_pin' is not valid in section 'board_pins ldo_leviathan_tmc5160', it was just a typo error , now i've got some thing new :configparser.Error: Option 'aliases' in section 'board_pins ldo_leviathan' must have 2 elements