Arma 2 Dedicated Linux Server Crashes

[iEnemY]

Hello, first sorry for my bad English - i am from Russia.
I buy Linux based dedicated server for ArmA 2, server have version 1.05. I, and other people playing on server, on different missions (Chernarus life, Gangsta life, warfare be, and default missions from BIS) and server crashing on that's all missions randomly! Max up time - 5 hours, min up time - 30 min. I update server to 1.07 versions - crashes again. I don't know what doing... its very bad. I pay lot of money for chance have dedicated server, and what i have... my server.cfg and arma2.cfg:

language="Russian";
adapter=-1;
3D_Performance=8021;
Resolution_W=160;
Resolution_H=120;
Resolution_Bpp=32;
viewDistance=10000;
terrainGrid=10;
MinBandwidth=15000000;
MaxBandwidth=9900000000;
MaxMsgSend=4096;
MaxSizeGuaranteed=4096;
MaxSizeNonguaranteed=64;
MinErrorToSend=1.09;
MaxCustomFileSize=0;
Windowed=0;


hostname="Chernarus life rus (1.07 beta) ";
// password = ""; // password to protect server access
passwordAdmin = "(password)=)";

motd[]=
{
" (here motd on russia) ",
};

motdInterval=0; // period between motd rotation

voteThreshold=1.5;
maxPlayers = 16;
reportingIP="arma2.master.gamespy.com";
voteMissionPlayers=1; // start voting when 1 players connect
logfile = "log.log";

class Missions
{
class Mission_01
{
template = chernolife4.chernarus;
difficulty = "regular";
};
};

kickduplicate=1; // do not allow duplicate id
equalModRequired=0; // require equal mod
disableVoN=1;
vonCodecQuality=7;
VonID=1;

timeStampFormat=full;

NetStats=1;
DeathMessages=1;
persistent=0;
BattlEye=1;
regularcheck="{}";

verifySignatures=0;

Any one can help me with tweaking server? Please, i am very need help...