erver not started
Start command:
cd /home/servers-cs/test; screen -m -d -S cstrike_iwZOqJ_27015 ./hlds_run -console -game cstrike -heapsize 1024000 +master -insecure -sys_ticrate 1200 -pingboost 1 +sv_lan 1  +ip 0.0.0.0 +port 27015 +map de_dust2 +maxplayers 21

Console:

root@cs-servers:~# cat /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults        env_reset
Defaults        mail_badpass
Defaults        secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/                                                                                             sbin:/bin"
Defaults        env_keep="VESTA"
Defaults:admin  !requiretty

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root    ALL=(ALL:ALL) ALL
#steam  ALL=NOPASSWD:ALL
#steam  NOPASSWD:(ALL) /bin/su
#steam  ALL=/bin/su
#%steam ALL=(ALL) NOPASSWD: ALL

# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL

# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d
admin   ALL=NOPASSWD:/usr/local/vesta/bin/*
www-data ALL=NOPASSWD:/home/servers/server.sh
www-data ALL=NOPASSWD:/home/servers/steamcmd.sh
steam ALL=NOPASSWD:/home/servers/server.sh
steam ALL=NOPASSWD:/home/servers/steamcmd.sh

root@cs-servers:/home/servers-cs/test# ls -l
total 34080
drwxrwxr-x  4 steam www-data     4096 Feb  9 17:55 142342c584863bf6a2a7e971959dd9ba55b44bbd
drwxrwxr-x  4 steam www-data     4096 Feb  9 17:36 b52952203fcc474e707f9c37f1a197a1925c779a
-rwxrwxr-x  1 steam www-data   954176 Feb  9 17:55 core.so
-rwxrwxr-x  1 steam www-data   658817 Feb  9 17:55 crashhandler.so
drwxrwxr-x 14 steam www-data     4096 Feb  9 17:55 cstrike
-rw-rw-r--  1 steam www-data       45 Feb  9 18:54 debug.cmds
-rw-rw-r--  1 steam www-data      441 Feb  9 18:54 debug.log
-rwxrwxr-x  1 steam www-data   303632 Feb  9 17:55 demoplayer.so
-rwxrwxr-x  1 steam www-data  2948535 Feb  9 17:55 engine_i486.so
-rwxrwxr-x  1 steam www-data   393734 Feb  9 17:55 filesystem_stdio.so
-rwxrwxr-x  1 steam www-data   107270 Feb  9 17:55 hlds_linux
-rwxrwxr-x  1 steam www-data     7778 Feb  9 17:55 hlds_run
-rwxrwxr-x  1 steam www-data   171230 Feb  9 17:55 hltv
-rwxrwxr-x  1 steam www-data   322152 Feb  9 17:55 libgcc_s.so.1
-rwxrwxr-x  1 steam www-data       17 Feb  9 17:55 libSDL2.so
-rwxrwxr-x  1 steam www-data  3769939 Feb  9 17:55 libstdc++.so.6
-rwxrwxr-x  1 steam www-data    76032 Feb  9 17:55 libsteam_api.so
-rwxrwxr-x  1 steam www-data  4383138 Feb  9 17:55 libsteam.so
-rwxrwxr-x  1 steam www-data   474261 Feb  9 17:55 libtier0.so
-rwxrwxr-x  1 steam www-data   441049 Feb  9 17:55 libvstdlib.so
-rwxrwxr-x  1 steam www-data   948577 Feb  9 17:55 proxy.so
-rw-rw-r--  1 steam www-data        3 Feb 10 14:19 steam_appid.txt
-rwxrwxr-x  1 steam www-data 16130904 Feb  9 17:55 steamclient.so
drwxrwxr-x 16 steam www-data     4096 Feb  9 18:05 valve
-rwxrwxr-x  1 steam www-data   900425 Feb  9 17:55 vgui2.so
-rwxrwxr-x  1 steam www-data   975888 Feb  9 17:55 vgui.so
-rwxrwxr-x  1 steam www-data    54955 Feb  9 17:55 voice_miles.so
-rwxrwxr-x  1 steam www-data   664256 Feb  9 17:55 voice_silk.so
-rwxrwxr-x  1 steam www-data   135312 Feb  9 17:55 voice_speex.so
root@cs-servers:/home/servers-cs/test#