Blend file will not import into S4S

The link to the Blend files and OBJ 

i've made a few things and i have made a different pump and it was fine it worked everything i have made has gone fine until now.

this is the error message i get 


The Sims 4 Studio - Version 3.1.4.5

System.AggregateException: One or more errors occurred. ---> System.IO.FileNotFoundException: Could not find file 'C:\ProgramData\S4Studio\Scripts\4b5a43fe-df0f-4735-8edb-8e13094f5644\s4s.out.mlod'.

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)

at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)

at S4Studio.ViewModels.ObjectLodItem.ImportMesh(BlenderUtilities blender_util, String blender_path)

at S4Studio.ViewModels.ObjectLodItem.<>c__DisplayClass49_0.<ImportMesh>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()

--- End of inner exception stack trace ---

---> (Inner Exception #0) System.IO.FileNotFoundException: Could not find file 'C:\ProgramData\S4Studio\Scripts\4b5a43fe-df0f-4735-8edb-8e13094f5644\s4s.out.mlod'.

File name: 'C:\ProgramData\S4Studio\Scripts\4b5a43fe-df0f-4735-8edb-8e13094f5644\s4s.out.mlod'

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)

at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)

at S4Studio.ViewModels.ObjectLodItem.ImportMesh(BlenderUtilities blender_util, String blender_path)

at S4Studio.ViewModels.ObjectLodItem.<>c__DisplayClass49_0.<ImportMesh>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()<---


i tried decimating it because the poly was too high and i've tried other stuff i've left it for a few months if i have to re do it so be it i guess but if there is any way i could get this to work... i put a lot of time into it and i'd hate to lose it.