Your MirConfig File Must Look Like This

If not then Copy this text and Replace it :

[Graphics]
FullScreen=True
AlwaysOnTop=True
FPSCap=True
Resolution=1024
DebugMode=False

[Network]
UseConfig=True
IPAddress=mir.sna-world.org
Port=7000

[Logs]
LogErrors=True
LogChat=True

[Sound]
Volume=43
SoundOverLap=3
Music=89

[Game]
AccountID=
Password=
SkillMode=False
SkillBar=False
Effect=True
LevelEffect=True
DropView=True
NameView=True
HPMPView=True
FontName=Tahoma
TransparentChat=False
DisplayDamage=True
TargetDead=False
ExpandedBuffWindow=True
DuraWindow=False
Skillbar0X=0
Skillbar0Y=0
Skillbar1X=216
Skillbar1Y=0

[Chat]
ShowNormalChat=True
ShowYellChat=True
ShowWhisperChat=True
ShowLoverChat=True
ShowMentorChat=True
ShowGroupChat=True
ShowGuildChat=False

[Filter]
FilterNormalChat=False
FilterWhisperChat=False
FilterShoutChat=False
FilterSystemChat=False
FilterLoverChat=False
FilterMentorChat=False
FilterGroupChat=False
FilterGuildChat=False

[Launcher]
Enabled=True
Host=http://mirfiles.co.uk/mir2/cmir/patch/
PatchFile=PList.gz
NeedLogin=False
Login=
Password=
AutoStart=False
ServerName=Dark Days
Browser=https://launcher.mironline.co.uk/web/