Schlumpf, danke schon
I fixed my permissions and all is good now.
For future references, if anyone get's the same error as I did. Find your wow folder and right click on it.
Go to "Properties" > "Security" and follow these easy steps.
Step #1
[attachment=3:2yompg24]FixingNoggiterror1.png[/attachment:2yompg24]
Step #2
[attachment=2:2yompg24]FixingNoggiterror2.png[/attachment:2yompg24]
Step #3
[attachment=1:2yompg24]FixingNoggiterror3.png[/attachment:2yompg24]
And finally last step,
[attachment=0:2yompg24]FixingNoggiterror4.png[/attachment:2yompg24]