The trajectory of the animation camera, problem

Hi guys!
I use unreal version 4.9
I was trying to move all the keyframes to increase the playing time between them.
Here’s what I got :((((((((
48abee0ac39800727df90a16e6a48779f07a720a.jpeg
9d8e72e359920cfc87107d5ee5633cf8217d62d6.jpeg
And screen this is history undo :DDDDD