How do i fix a leaking septic. the leach lines are cloged and the tank is overflowing?

just finished up one today have the solids pumped and that just might be your problem if the solid end of the tank is to full nothing will flow out and the liquid over flows and when you think its the leach lines its not its just the tank is to full and if it is the lines and they are full of roots you may need to replaces