Trados Studio 2022 17.2.9.18688 refuses to start with error "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

I have not updated anything on the computer that I'm aware of and have not updated or done anything with Trados. I closed it on Friday evening and tried to open it this morning but now it just gives me this error message and refuses to start.

I've tried the options to reset user settings that are mentioned elsewhere by renaming the relevant folders in appdata roaming and local. I've tried repairing the installation. I've even uninstalled Trados completely, restarting the computer and then reinstalling it. I still get the same message. I've attached the error details for reference. When I start the startup screen says "Executing start up extensions..." right before the error pops up.

<SDLErrorDetails time="2024-01-29 12:31:25">
  <ErrorMessage>Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index</ErrorMessage>
  <Exception>
    <Type>SimpleInjector.ActivationException, SimpleInjector, Version=5.0.0.0, Culture=neutral, PublicKeyToken=984cb50dea722e99</Type>
    <HelpLink />
    <Source>SimpleInjector</Source>
    <HResult>-2146233088</HResult>
    <StackTrace><![CDATA[   at SimpleInjector.InstanceProducer.GetInstance()
   at SimpleInjector.Internals.ContainerControlledCollection`1.GetInstance(InstanceProducer producer)
   at SimpleInjector.Internals.ContainerControlledCollection`1.CopyTo(TService[] array, Int32 arrayIndex)
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Sdl.Platform.UI.Wizard.Framework.WizardBuilder.BuildWizardPages[TSharedData](TSharedData sharedData, IWizardWindowViewModel wizardWindowVm)
   at Sdl.Platform.UI.Wizard.Framework.WizardBuilder.Build[TSharedData](TSharedData sharedData)
   at Sdl.Platform.UI.Wizard.Framework.WizardBuilder.Build[TSharedData,TBackendService](TSharedData sharedData)
   at Sdl.TranslationStudio.Common.SetupWizard.SetupWizardLauncher.Execute()
   at Sdl.Desktop.Platform.Implementation.Studio.ExecuteStartupExtensions(ISplashScreen splashScreen, IEnumerable`1 startUpActions)
   at Sdl.Desktop.Platform.Implementation.Studio.Run(ISplashScreen splashScreen, IPluginLoaderService pluginLoaderService, ICommandLineParsingService commandLineParsingService, IUserSettingsService userSettingsService, IEnumerable`1 startUpActions, ILicensingService licensingService)
   at Sdl.TranslationStudio.Application.Launcher.RunApplication()]]></StackTrace>
    <InnerException>
      <Type>System.ArgumentOutOfRangeException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
      <ParamName>index</ParamName>
      <HelpLink />
      <Source>mscorlib</Source>
      <HResult>-2146233086</HResult>
      <StackTrace><![CDATA[   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at Sdl.TranslationStudio.Common.SetupWizard.UserProfileWizardPageViewModel..ctor(IUserSettingsService userSettingsService, IMessageService messageService, IOpenFileDialog openFileDialog, IUserProfileFactory userProfileFactory)
   at lambda_method(Closure )
   at SimpleInjector.InstanceProducer.BuildAndReplaceInstanceCreatorAndCreateFirstInstance()
   at SimpleInjector.InstanceProducer.GetInstance()]]></StackTrace>
    </InnerException>
  </Exception>
  <Environment>
    <ProductName>Trados Studio</ProductName>
    <ProductVersion>Studio17</ProductVersion>
    <EntryAssemblyFileVersion>17.2.9.18688</EntryAssemblyFileVersion>
    <OperatingSystem>Microsoft Windows 11 Home</OperatingSystem>
    <ServicePack>NULL</ServicePack>
    <OperatingSystemLanguage>1033</OperatingSystemLanguage>
    <CodePage>1252</CodePage>
    <LoggedOnUser>KRAKEN\nikla</LoggedOnUser>
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>KRAKEN</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>33462320 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>

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