It could be a lot of different things based on that, try using your utool to check the batteries to make sure they're charging, check fuel rods and coolant cells, check radiators for damage, and if you've got a durability tool you can use it to check if you're over budget on any parts.
If you really cant figure it out and its possibly a bug, if you throw us an F1 request we can dev-tow it to a station for you, so there's always that.