Can not switch client window with mouse click after screensaver

[Hacksign]

I can not switch client window with my mouse cursor click after a screen 
lock or  screen blank.
When this situation happened, replace my rc.lua with default rc.lua then 
restart awesome with mod4+ctrl+r still can not switch.
Here is my config file :
https://github.com/Hacksign/configs/tree/master/.config/awesome
any body knows the reason ?

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