Getting Assertion failed Error every time.. Please help

[anonymous_user_6ca43f75]

I continuously get this error when trying to copy an asset to another folder. Why is this happening? I can’t do anything, because after the error pops up, the DevKit/Unreal crashes.
This is the base from files directly from ark; nothing has been changed or modified.

Assertion failed: BlueprintObj->GeneratedClass [File:H:\SVN_Ark\Engine\Source\Editor\UnrealEd\Private [Line: 533]
Invalid generated class for Base_CropPlot

VERSION: 0.0
KERNELBASE.dll!UnknownFunction (0x00007ff8ab4f7788) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ff863da66ad) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ff863c8d258) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ff863c61902) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ff84c3a5425) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ff84cffaae2) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ff88d5d8d5e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ff88d5c65b2) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ff88d5f72df) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ff88d62f0ec) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ff88d5f68de) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ff88d63622b) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ff88d71f85f) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ff88d72768b) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ff88d72cd24) + 0 bytes [UnknownFile:0]
UE4Editor-ContentBrowser.dll!UnknownFunction (0x00007ff845424d17) + 0 bytes [UnknownFile:0]
UE4Editor-ContentBrowser.dll!UnknownFunction (0x00007ff84542faee) + 0 bytes [UnknownFile:0]
UE4Editor-ContentBrowser.dll!UnknownFunction (0x00007ff845417552) + 0 bytes [UnknownFile:0]
UE4Editor-ContentBrowser.dll!UnknownFunction (0x00007ff8454002c2) + 0 bytes [UnknownFile:0]
UE4Editor-ContentBrowser.dll!UnknownFunction (0x00007ff84540ed77) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ff85b51f626) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ff85b5268e8) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ff85b4e9bbf) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ff85b5e441a) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ff85b617482) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ff85b53d55c) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ff85b529461) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ff863d04aed) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ff863ce2ddb) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ff863d05c79) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ff863cdcb82) + 0 bytes [UnknownFile:0]
USER32.dll!UnknownFunction (0x00007ff8ac541c24) + 0 bytes [UnknownFile:0]
USER32.dll!UnknownFunction (0x00007ff8ac54156c) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ff863d069d6) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff79ff7a713) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff79ff6f91f) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff79ff6f98a) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff79ff7bf50) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff79ff7ce99) + 0 bytes [UnknownFile:0]
KERNEL32.DLL!UnknownFunction (0x00007ff8ad778364) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ff8aefa70d1) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ff8aefa70d1) + 0 bytes [UnknownFile:0]