Problems with perks STEAM

[Oleksiy Striy]

Hello.
In steam i had a problems with PERKS.
On Thursday all perks comes at 0 stats,and now they dont progress,even if i played on server after coming out all my XP are is canceled.
All my friend's has normal XP up,but i'm always stays at 0.
I dont foud on FORUM on Steam or here nothing about this bug or hou you call it..
Help!1!!!

 

[MK.]

If your perks are suddenly reset to zero or get stuck,
chances are there is a very temporary break in synching your computer to your Perks at TWI.

♦ Right click on Killing Floor in your steam library, then select properties.
Navigate to the "local files" tab and choose verify integrity of game cache.

I fixed it by doing this step.
If the problem persists, contact Tripwire Support.
♦ https://support.tripwireinteractive.com/en