looks like at this moment your problem is the mapid 500
check your cq_map to see if you have this id then see if your gamemap.ini (gameserver\ini folder) has this id aswell then see if your map folder has the correct map there which you can see its name within the gamemap.ini
Code:
[Map500]
File=map/map/playgroud.DMap
Alpha=255
Red=255
Green=255
Blue=255
Name=TrainGround
Snow=0
Firebug=0
Dragon=0
Dandelion=1
Music=music/1001.mp3
switch=0
daysound=null
nightsound=null
day=0x00FFFFFF
nightfall=0xFFFFAAAA
night=0xFF9999FF
dawn=0xFFAAAAFF
thats whats in my client gamemap.ini,
make sure that id is in the cq_map and that "playgroud.DMap" is in your servers map folder
it is likely that you will have a few missing map peices etc but you will just have to keep looking at the log files and keep fixing it
Best solution for this is to just get the most up to date client rar up its map folder and the gamemap.ini and copy it to your server folder
this way you can pretty gurantee it wont fail good luck