"Object reference not set to an instance of an object error" when creating a new local project

I use the latest Trados Studio version (2024 - 18.0.1.2259).
Each time I try to "create a new local project" I receive this error message, which has made Trados Studio unusable for new projects:


Object reference not set to an instance of an object error when creating a new project

Additional information:
Operating System: Windows 11 Home - Version 10.0.26100 Build 26100
Antivirus Software: Bitdefender Total Security (I tried entirely disabling it but to no avail)
Also, I have installed Multiterm 2024 Desktop (latest version)

===
Error details:

<SDLErrorDetails time="1/28/2025 1:27:01 PM">
<ErrorMessage>Object reference not set to an instance of an object.</ErrorMessage>
<Exception>
<Type>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
<HelpLink/>
<Source>Sdl.ProjectApi.Implementation</Source>
<HResult>-2147467261</HResult>
<StackTrace>
<![CDATA[ at Sdl.ProjectApi.Implementation.ProjectTermbaseConfigurationProvider.ReviewTermbaseNames(String termbaseName) at Sdl.ProjectApi.Implementation.ProjectTermbaseConfigurationProvider.GetTermbases(TermbaseConfiguration termbaseConfigurationXml) at Sdl.ProjectApi.Implementation.ProjectTermbaseConfigurationProvider.GetTermbaseConfiguration(TermbaseConfiguration termbaseConfigurationXml) at Sdl.ProjectApi.Implementation.AbstractProjectConfigurationRepository.GetTermbaseConfiguration(IRelativePathManager pathManager) at Sdl.ProjectApi.Implementation.AbstractProjectConfiguration.get_TermbaseConfiguration() at Sdl.ProjectApi.Implementation.ProjectTemplate..ctor(IProjectsProvider projectsProvider, String description, String projectTemplateFilePath, IProject project, IProjectPathUtil projectPathUtil, IProjectTemplateRepository repository, IUser currentUser, IDirectory directoryWrapper) at Sdl.ProjectApi.Implementation.ProjectsProvider.CreateNewProjectTemplate(String description, String projectTemplateFilePath, IProject project) at Sdl.ProjectApi.Implementation.Project.set_ReferenceProject(IProject value) at Sdl.ProjectApi.Implementation.Project..ctor(IProjectsProvider projectsProvider, String projectFilePath, Language sourceLanguage, Language[] targetLanguages, IProject referenceProject, IProjectRepository repository, IUser currentUser, IProjectOperation operation, IEventAggregator eventAggregator) at Sdl.ProjectApi.Implementation.ProjectsProvider.CreateNewProject(String projectName, Language sourceLanguage, Language[] targetLanguages, IProject referenceProject, String localDataFolder) at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.Services.ProjectBuilder.CreateProject(String name, Language sourceLanguage, ProjectReference reference) at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.CreateNewProject(Boolean updateTargetLanguages) at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.RefreshProjectForNewLanguage() at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.set_SelectedSourceLanguages(List`1 value) at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.UpdateSourceLanguage() at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.RefreshProject() at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.set_SelectedProjectReferences(ObservableCollection`1 value) at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel..ctor(IProjectWizardData data, SupportedFlagsList sourceLanguagesFlags, ProjectReferenceBrowser projectReferenceBrowser, ProjectReferenceProvider projectReferenceProvider, LocationBrowser locationBrowser, DefaultProjectInfoGenerator projectInfoGenerator, IMessageService messageService, FilesViewModel filesViewModel, CustomLanguagesViewModel targetLanguagesViewModel, ProjectBuilder projectBuilder, OneStepSettings oneStepSettings, IDirectory directory, IEventAggregator eventAggregator, IEditorPreferences editorPreferences) at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.OneStepViewModelBuilder.CreateOneStepViewModel() at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.OneStepViewModelBuilder.Build(IWizardPageSite`1 site, ProjectReferenceProvider projectReferenceProvider) at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.Pages.OneStepWizardPage.OnInit(IWizardPageSite`1 site) at Sdl.Desktop.Platform.Wizard.AbstractWizardPage`1.Init(IWizardPageSite`1 site) at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.EnsurePageSited(IWizardPageReference`1 page) at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.GetNextAvailablePageIndex() at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.PrepareWizardForShow() at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.Show(IWin32Window owner) at Sdl.TranslationStudio.ProjectManagement.ProjectManagementService.ShowProjectWizard(IProjectWizardData wizardData) at Sdl.TranslationStudio.ProjectManagement.Commands.NewProjectCommand.Execute(Object parameter) at Sdl.TranslationStudio.ProjectManagement.Actions.NewProjectAction.<>c__DisplayClass2_0.<Execute>b__0() ]]>
</StackTrace>
</Exception>
<Environment>
<ProductName>Trados Studio</ProductName>
<ProductVersion>Studio18</ProductVersion>
<EntryAssemblyFileVersion>18.0.1.2259</EntryAssemblyFileVersion>
<OperatingSystem>Microsoft Windows 11 Home</OperatingSystem>
<ServicePack>NULL</ServicePack>
<OperatingSystemLanguage>1033</OperatingSystemLanguage>
<CodePage>1252</CodePage>
<LoggedOnUser>ARYA\aryal</LoggedOnUser>
<DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
<ComputerName>ARYA</ComputerName>
<ConnectedToNetwork>True</ConnectedToNetwork>
<PhysicalMemory>33471796 MB</PhysicalMemory>
</Environment>
</SDLErrorDetails>

<SDLErrorDetails time="1/28/2025 1:27:01 PM">
  <ErrorMessage>Object reference not set to an instance of an object.</ErrorMessage>
  <Exception>
    <Type>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
    <HelpLink />
    <Source>Sdl.ProjectApi.Implementation</Source>
    <HResult>-2147467261</HResult>
    <StackTrace><![CDATA[   at Sdl.ProjectApi.Implementation.ProjectTermbaseConfigurationProvider.ReviewTermbaseNames(String termbaseName)
   at Sdl.ProjectApi.Implementation.ProjectTermbaseConfigurationProvider.GetTermbases(TermbaseConfiguration termbaseConfigurationXml)
   at Sdl.ProjectApi.Implementation.ProjectTermbaseConfigurationProvider.GetTermbaseConfiguration(TermbaseConfiguration termbaseConfigurationXml)
   at Sdl.ProjectApi.Implementation.AbstractProjectConfigurationRepository.GetTermbaseConfiguration(IRelativePathManager pathManager)
   at Sdl.ProjectApi.Implementation.AbstractProjectConfiguration.get_TermbaseConfiguration()
   at Sdl.ProjectApi.Implementation.ProjectTemplate..ctor(IProjectsProvider projectsProvider, String description, String projectTemplateFilePath, IProject project, IProjectPathUtil projectPathUtil, IProjectTemplateRepository repository, IUser currentUser, IDirectory directoryWrapper)
   at Sdl.ProjectApi.Implementation.ProjectsProvider.CreateNewProjectTemplate(String description, String projectTemplateFilePath, IProject project)
   at Sdl.ProjectApi.Implementation.Project.set_ReferenceProject(IProject value)
   at Sdl.ProjectApi.Implementation.Project..ctor(IProjectsProvider projectsProvider, String projectFilePath, Language sourceLanguage, Language[] targetLanguages, IProject referenceProject, IProjectRepository repository, IUser currentUser, IProjectOperation operation, IEventAggregator eventAggregator)
   at Sdl.ProjectApi.Implementation.ProjectsProvider.CreateNewProject(String projectName, Language sourceLanguage, Language[] targetLanguages, IProject referenceProject, String localDataFolder)
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.Services.ProjectBuilder.CreateProject(String name, Language sourceLanguage, ProjectReference reference)
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.CreateNewProject(Boolean updateTargetLanguages)
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.RefreshProjectForNewLanguage()
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.set_SelectedSourceLanguages(List`1 value)
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.UpdateSourceLanguage()
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.RefreshProject()
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel.set_SelectedProjectReferences(ObservableCollection`1 value)
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.ViewModel.OneStepViewModel..ctor(IProjectWizardData data, SupportedFlagsList sourceLanguagesFlags, ProjectReferenceBrowser projectReferenceBrowser, ProjectReferenceProvider projectReferenceProvider, LocationBrowser locationBrowser, DefaultProjectInfoGenerator projectInfoGenerator, IMessageService messageService, FilesViewModel filesViewModel, CustomLanguagesViewModel targetLanguagesViewModel, ProjectBuilder projectBuilder, OneStepSettings oneStepSettings, IDirectory directory, IEventAggregator eventAggregator, IEditorPreferences editorPreferences)
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.OneStepViewModelBuilder.CreateOneStepViewModel()
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.OneStepViewModelBuilder.Build(IWizardPageSite`1 site, ProjectReferenceProvider projectReferenceProvider)
   at Sdl.TranslationStudio.ProjectManagement.ProjectWizard.OneStep.Pages.OneStepWizardPage.OnInit(IWizardPageSite`1 site)
   at Sdl.Desktop.Platform.Wizard.AbstractWizardPage`1.Init(IWizardPageSite`1 site)
   at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.EnsurePageSited(IWizardPageReference`1 page)
   at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.GetNextAvailablePageIndex()
   at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.PrepareWizardForShow()
   at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.Show(IWin32Window owner)
   at Sdl.TranslationStudio.ProjectManagement.ProjectManagementService.ShowProjectWizard(IProjectWizardData wizardData)
   at Sdl.TranslationStudio.ProjectManagement.Commands.NewProjectCommand.Execute(Object parameter)
   at Sdl.TranslationStudio.ProjectManagement.Actions.NewProjectAction.<>c__DisplayClass2_0.<Execute>b__0()]]></StackTrace>
  </Exception>
  <Environment>
    <ProductName>Trados Studio</ProductName>
    <ProductVersion>Studio18</ProductVersion>
    <EntryAssemblyFileVersion>18.0.1.2259</EntryAssemblyFileVersion>
    <OperatingSystem>Microsoft Windows 11 Home</OperatingSystem>
    <ServicePack>NULL</ServicePack>
    <OperatingSystemLanguage>1033</OperatingSystemLanguage>
    <CodePage>1252</CodePage>
    <LoggedOnUser>ARYA\aryal</LoggedOnUser>
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>ARYA</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>33471796 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>


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