I guess it means more or less the following: Oh Lord, dont recall neither my guilt and my sins nor the sins of the fathers, so that your punishment does not go down on me, so that your punishment does not go down on me. Thats at least the only thing that makes sense for me. I also think you have some spelling mistakes/wrong words in there (this way it doesn't really make sense at all). I think it should rather be like: Oh Herr, gedenke nicht meiner Schuld und meiner Sünden, noch der Sünden der Väter, auf dass nicht deine Strafe, auf dass nicht deine Strafe auf mich niederfalle, auf mich niederfalle.