[Drocona]

ok i made this plugin.. everything seems to be working but after a while it just crashes (read error acces memory shit)

i dont know whats the problem.... it just logs some things ingame, writing it to a .txt file.

void CTSlogging::FireGameEvent( KeyValues * event )
{
	const char * name = event->GetName();
	FileHandle_t tslogs;
    tslogs = filesystem->Open("TSlog.txt","a+t");

	if ( FILESYSTEM_INVALID_HANDLE != tslogs )
	{
		if (FStrEq(name, "round_start"))
		{
			filesystem->FPrintf(tslogs,"Round Started \n");
			filesystem->Close(tslogs);
		}

		else if (FStrEq(name, "player_say"))
		{
			int pname = event->GetInt("userid");
			const char* text = event->GetString("text");

			char buffer[300];
			Q_snprintf(buffer,300,"%s%s%s%s\n","say ",pname,": ",text);

			filesystem->FPrintf(tslogs,buffer);
			filesystem->Close(tslogs);
		}			

		else if (FStrEq(name, "player_death"))
		{
			int killer = event->GetInt("attacker");
			int victim = event->GetInt("userid");

			if (victim == killer)
			{
				filesystem->FPrintf(tslogs, killer + "comitted suicide \n");
				filesystem->Close(tslogs);
			}

			else
			{
				char buf[300];
				Q_snprintf(buf,300,"%s%s%s\n",killer," killed ",victim);

				filesystem->FPrintf(tslogs,buf);
				filesystem->Close(tslogs);
			}
		}
	} 
}

i think it might have something to do with the filesystem->FPrintf function because mani said it makes alot of crashes?
if it is that function, can someone tell me how i could write to a file without the FPrintf function and without any extra things i need to have in C++

***EDIT***
after a little testing i noticed that the server crashes after shooting a player a few times ingame