Object reference not set to an instance of an object in SDL Trados 2017

Hi,

Im getting this error in SDL Trados 2017 after creating a Return Package: Object reference not set to an instance of an object in SDL Trados .

I already did a lot of things, clean install using Revo, delete folders under appdata etc etc.

Below, my logs of the error when it happends:

<?xml version="1.0"?>

-<SDLErrorDetails time="11/03/2021 17:31:29">

<ErrorMessage>A referência de objecto não foi definida como uma instância de um objecto.</ErrorMessage>


-<Exception>

<Type>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>

<HelpLink/>

<Source>Sdl.Desktop.Platform</Source>

<HResult>-2147467261</HResult>


-<StackTrace>

-<![CDATA[   em Sdl.Desktop.Platform.Wizard.AbstractWizard`1._form_Closing(Object sender, CancelEventArgs e)
   em System.Windows.Forms.Form.OnClosing(CancelEventArgs e)
   em System.Windows.Forms.Form.CheckCloseDialog(Boolean closingOnly)]]>
</StackTrace>

</Exception>


-<Environment>

<ProductName>SDL Trados Studio</ProductName>

<ProductVersion>14.0.0.0</ProductVersion>

<EntryAssemblyFileVersion>14.1.10018.54792</EntryAssemblyFileVersion>

<OperatingSystem>Microsoft Windows 10 Pro</OperatingSystem>

<ServicePack>NULL</ServicePack>

<OperatingSystemLanguage>2070</OperatingSystemLanguage>

<CodePage>1252</CodePage>

<LoggedOnUser>KT\AL</LoggedOnUser>

<DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>

<ComputerName>KT-L6</ComputerName>

<ConnectedToNetwork>True</ConnectedToNetwork>

<PhysicalMemory>8278044 MB</PhysicalMemory>

</Environment>

</SDLErrorDetails>

I really need help on this,

Thanks.

JS