vibe on skyline?????

okay, so just today i noticed my skyline had a vibe!!! it has always been incredibly smooth and never had this problem. how can i fix this?

Answer this question.

What have you done to your yoyo to cause the vibe?
Taken it apart too much and the axle moved to one side?
Bearing loud and loose?
ding it?

The last one

now it cant screw together. i am really angry and confused please reply and help me!!!