Cannot upodate my servers

[Arnold0]

Hi,

So I saw tooday that the 16/02/2017 a new update came out. I seams like it is not mandotary but is very recommanded because people could potentialy crash the servers ?

So I tryed to update my servers but I got this error :
[quote]

Connecting anonymously to Steam Public...Logged in OK
Waiting for license info...OK
Update state (0x3) reconfiguring, progress: 0.00 (0 / 0)
Update state (0x3) reconfiguring, progress: 0.00 (0 / 0)
Error! App '4020' state is 0x6 after update job.
Redirecting stderr to '/home/steam/Steam/logs/stderr.txt'
[ 0%] Checking for available updates...
[----] Verifying installation...
Steam Console Client (c) Valve Corporation
-- type 'quit' to exit --
Loading Steam API...Created shared memory when not owner SteamController_Shared_mem
OK.
[/quote]

It gets spammed in the console.
My machine is on debian, and I use an update script since I made my servers, it always worked before. Any idea what this error is and what I can do to fix it ? If now I can restart my servers and they may work, when there will be a real mandatory update if it doesn't work it will be very bad.

Thanks for ideas.
EDIT : One of my servers was still running because it had 40 players, but it's not the one I tryed to update. Could having one of the servers running when trying to update the other servers do that ? I may try to stop them all when there will be no/very little players and see if it will work then.

EDIT 2 : Deleted whole steam CMD from the server and redownloaded it. Seams like it works now. Idk how to set resolved.