Problème error RO

Bonjour, voila je suis sur un serveur ragnarok j'y est joué assez souvent ! Un jour je le lance, le jeu se coupe il revient à l'écran d'accueuil et une message d'erreur s'inscrit : gravity(tm) error handler, et voici ce qu'il m'écrit :

Module Name: C:\Program Files\Yume\YumeOnline.exe
Time Stamp: 0x483ccf91 - Wed May 28 05:20:49 2008

Exception Type: 0xc0000005

0x00417994 YumeOnline.exe
0x0040db5d YumeOnline.exe
0x00564232 YumeOnline.exe
0x005e30cb YumeOnline.exe
0x005e0be5 YumeOnline.exe
0x0051373c YumeOnline.exe
0x00577720 YumeOnline.exe
0x005774f4 YumeOnline.exe
0x00693698 YumeOnline.exe
0x006b489a YumeOnline.exe
0x76ea3833 kernel32.dll
0x772aa9bd ntdll.dll

eax: 0x00000075 ebx: 0x0a1d03f0
ecx: 0x0a1d040c edx: 0x00000000
esi: 0x0000000e edi: 0x00000110
ebp: 0x0012f324 esp: 0x0012f280

stack 0012f280 - 0012f680
0012F280 : 10 01 00 00 B0 43 9D 0B C0 18 AE 0B 7C 00 00 00
0012F290 : 0F 10 10 00 00 01 00 00 00 01 00 00 00 02 00 00
0012F2A0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0012F2B0 : F0 01 1D 0A 00 00 00 00 00 00 00 00 00 00 00 00
0012F2C0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0012F2D0 : 00 00 00 00 20 00 00 00 41 00 00 00 00 00 00 00
0012F2E0 : 10 00 00 00 00 7C 00 00 E0 03 00 00 1F 00 00 00
0012F2F0 : 00 80 00 00 00 18 00 00 10 00 00 00 00 00 00 00
0012F300 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0012F310 : 00 00 00 00 00 00 00 00 F8 EB D3 05 01 00 00 00
0012F320 : C2 B0 D5 0B D4 F3 12 00 5D DB 40 00 00 00 00 00
0012F330 : 00 00 00 00 40 00 00 00 80 00 00 00 D8 E6 D2 0B
0012F340 : 10 01 00 00 00 00 00 00 D8 E6 D2 0B 70 FA 12 00
0012F350 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0012F360 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0012F370 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Launch Info
018E 018D 016A 016A 00C9 00C8 00CA 00CA
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000

Job : Assassin Cross

Pouvez vous m'aider svp !

Merci !