Error Message When Importing Mesh

Hello... I'm trying to import a dress mesh, and after waiting like 30 minutes, I got this Error Message...: The Sims 4 Studio - Version 3.1.5.8

System.AggregateException: One or more errors occurred. ---> S4Studio.Blender.BlenderException:

File "<string>", line 1, in <module>

File "<string>", line 41, in <module>

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 626, in write

rcol.get_block_index(self, self.ROOT_REFERENCE_TYPE)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 525, in get_block_index

block.write_rcol(stream, self)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\cas\geometry.py", line 460, in write_rcol

s.u16(index)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 231, in u16

self.u(data, 16, order)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 210, in u

elif size == 16: self.write('H', data, order)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 183, in write

self.f.write(struct.pack(l, data))

struct.error: ushort format requires 0 <= number <= USHRT_MAX





at S4Studio.Blender.BlenderUtilities.RunBlender(String script, String blend, Boolean background, Boolean check_version)

at S4Studio.Blender.BlenderUtilities.ImportGeom(String custom_blend, String custom_geom, Int32 body_type, String cut)

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

at S4Studio.ViewModels.CAS.CASStandalone.<>c__DisplayClass71_0.<ExecuteImportMesh>b__0()

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

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

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

---> (Inner Exception #0) S4Studio.Blender.BlenderException:

File "<string>", line 1, in <module>

File "<string>", line 41, in <module>

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 626, in write

rcol.get_block_index(self, self.ROOT_REFERENCE_TYPE)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 525, in get_block_index

block.write_rcol(stream, self)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\cas\geometry.py", line 460, in write_rcol

s.u16(index)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 231, in u16

self.u(data, 16, order)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 210, in u

elif size == 16: self.write('H', data, order)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\io.py", line 183, in write

self.f.write(struct.pack(l, data))

struct.error: ushort format requires 0 <= number <= USHRT_MAX





at S4Studio.Blender.BlenderUtilities.RunBlender(String script, String blend, Boolean background, Boolean check_version)

at S4Studio.Blender.BlenderUtilities.ImportGeom(String custom_blend, String custom_geom, Int32 body_type, String cut)

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

at S4Studio.ViewModels.CAS.CASStandalone.<>c__DisplayClass71_0.<ExecuteImportMesh>b__0()

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

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


Can anyone help me with this, please?..