Problem with IATE plugin for Studio 2017

Hi community,

I recently visited one of the roadshows and wanted to try the IATE plugin from the appstore.

However, I can't actually add the IATE termbase in my settings. This is the error message I get (in Finnish):

I am using Studio 2017 SR1, 14.1.10015.44945 (I am not in a position to change this, but my company is most likely updating to 2019 very soon).

The plugin version is 1.6.5.0.

The error occurs when I got to settings > Termbases > Use > Iate terminology provider.

I saw someone had a similar problem and was asked to include the stacktrace, so here is mine (changed personal info):

<SDLErrorDetails time="28.10.2019 14:22:30">
  <ErrorMessage>Tiedostoa tai kokoonpanoa Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed tai jotakin sen riippuvuutta ei voi ladata. M��ritetty� tiedostoa ei l�ydy.</ErrorMessage>
  <Exception>
    <Type>System.IO.FileNotFoundException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
    <FileName>Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed</FileName>
    <FusionLog>VAROITUS: Kokoonpanon sidonnan kirjaus on poistettu k�yt�st�.
Voit ottaa kokoonpanon sidonnan virheiden kirjauksen k�ytt��n m��ritt�m�ll� rekisteriarvolle [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) arvon 1.
Huomautus: Kokoonpanon sidontavirheiden kirjaaminen heikent�� j�rjestelm�n suorituskyky� jonkin verran.
Voit poistaa t�m�n ominaisuuden k�yt�st� poistamalla rekisteriarvon [HKLM\Software\Microsoft\Fusion!EnableLog].
</FusionLog>
    <HelpLink />
    <Source>IATETerminologyProvider</Source>
    <HResult>-2147024894</HResult>
    <StackTrace><![CDATA[   kohteessa IATETerminologyProvider.Service.DomainService.GetDomains()
   kohteessa IATETerminologyProvider.ViewModel.SettingsViewModel.LoadDomains()
   kohteessa IATETerminologyProvider.ViewModel.SettingsViewModel..ctor(ProviderSettings providerSettings)
   kohteessa IATETerminologyProvider.IATETerminologyProviderWinFormsUI.SetTerminologyProvider(IATETerminologyProvider provider, ProviderSettings providerSettings)
   kohteessa IATETerminologyProvider.IATETerminologyProviderWinFormsUI.Browse(IWin32Window owner, ITerminologyProviderCredentialStore credentialStore)
   kohteessa Sdl.TranslationStudio.ProjectManagement.Terminology.ProjectTermbasesControl.TerminologyProviderPluginOnClick(Object sender, EventArgs e)
   kohteessa System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
   kohteessa System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
   kohteessa System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
   kohteessa System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
   kohteessa System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
   kohteessa System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
   kohteessa System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
   kohteessa System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
   kohteessa System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   kohteessa System.Windows.Forms.Control.WndProc(Message& m)
   kohteessa System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   kohteessa System.Windows.Forms.ToolStrip.WndProc(Message& m)
   kohteessa System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)
   kohteessa System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   kohteessa System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   kohteessa System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)]]></StackTrace>
  </Exception>
  <Environment>
    <ProductName>SDL Trados Studio</ProductName>
    <ProductVersion>14.0.0.0</ProductVersion>
    <EntryAssemblyFileVersion>14.1.10015.44945</EntryAssemblyFileVersion>
    <OperatingSystem>Microsoft Windows 10 Enterprise</OperatingSystem>
    <ServicePack>NULL</ServicePack>
    <OperatingSystemLanguage>1035</OperatingSystemLanguage>
    <CodePage>1252</CodePage>
    <LoggedOnUser>XXXXXXX</LoggedOnUser>
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>XXXXXX</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>8226008 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>