Got his problem, I messed up and did some scripting wrong, I have now removed the scripts completly but they keep referencing to it and I cant compile any scripts. Can someone please help me!

So my script looks like this:

;BEGIN FRAGMENT CODE - Do not edit anything between this and the end comment
;NEXT FRAGMENT INDEX 6
Scriptname QF_GSQ01_0200C4E0 Extends Quest Hidden

;BEGIN ALIAS PROPERTY Amulet
;ALIAS PROPERTY TYPE ReferenceAlias
ReferenceAlias Property Alias_Amulet Auto
;END ALIAS PROPERTY

;BEGIN ALIAS PROPERTY bandit
;ALIAS PROPERTY TYPE ReferenceAlias
ReferenceAlias Property Alias_bandit Auto
;END ALIAS PROPERTY

;BEGIN ALIAS PROPERTY Thomas
;ALIAS PROPERTY TYPE ReferenceAlias
ReferenceAlias Property Alias_Thomas Auto
;END ALIAS PROPERTY

;BEGIN FRAGMENT Fragment_0
Function Fragment_0()
;BEGIN CODE
SetObjectiveDisplayed(10)
;END CODE
EndFunction
;END FRAGMENT

;BEGIN FRAGMENT Fragment_5
Function Fragment_5()
;BEGIN CODE
SetObjectiveCompleted(20)
;END CODE
EndFunction
;END FRAGMENT

;BEGIN FRAGMENT Fragment_2
Function Fragment_2()
;BEGIN CODE
SetObjectiveCompleted(10)
SetObjectiveDisplayed(20)
;END CODE
EndFunction
;END FRAGMENT

;END FRAGMENT CODE - Do not edit anything between this and the begin comment

Now when I save this happens:

Starting 1 compile threads for 1 files...
Compiling "QF_GSQ01_0200C4E0"...
C:\Program Files (x86)\Steam\steamapps\common\skyrim\Data\Scripts\Source\ObjectReference.psc(766,13): script property DungeonMarker already defined
C:\Program Files (x86)\Steam\steamapps\common\skyrim\Data\Scripts\Source\ObjectReference.psc(766,13): script variable ::DungeonMarker_var already defined
C:\Program Files (x86)\Steam\steamapps\common\skyrim\Data\Scripts\Source\ObjectReference.psc(766,13): script property DungeonMarker already has a get function defined
C:\Program Files (x86)\Steam\steamapps\common\skyrim\Data\Scripts\Source\ObjectReference.psc(766,13): script property DungeonMarker already has a set function defined
C:\Program Files (x86)\Steam\steamapps\common\skyrim\Data\Scripts\Source\ObjectReference.psc(771,13): script property DungeonMarker already defined
C:\Program Files (x86)\Steam\steamapps\common\skyrim\Data\Scripts\Source\ObjectReference.psc(771,13): script variable ::DungeonMarker_var already defined

What do i do? I went in the source folder and removed DungeonMarker but that did not help.

The same thing happens if I try to make a new property, basicly I just make a Objectreference and hit ok but I just get a bunch of the same stuff.

Please help me!