Question about Cheat Engine for Changing ID's

Hello :3
I have a Question,
My Problem is, when i changed the Values of 1% Attacke in 100% Pen Bonus
But when i go in a Room and Play a Match, The Client crashed with no error report.
So, what can i do?
I want play a Match with other Stats

(Ps.: My english is not so good :3 I speak german^^)

Loading process is always the same id, if it changes it NOPs and goes to another place. <: You can't change it ingame.