Hi, I just installed Newsletter Studio on v9 to test it out and I got this error in the command line. Thought I would share it with you.

[22:47:58 ERR] Exception thrown by ScheduledTransactionalCleanupRecurringTask
System.InvalidOperationException: Cannot resolve 'NewsletterStudio.Core.Editor.Json.EmailControlConverterHelper' from root provider because it requires scoped service 'NewsletterStudio.Web.Composing.Collections.EmailControlTypeConfigurationCollection'.
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteValidator.ValidateResolution(Type serviceType, IServiceScope scope, IServiceScope rootScope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService[T](IServiceProvider provider)
   at NewsletterStudio.Web.UmbracoDependencyResolver.GetService[T]()
   at NewsletterStudio.Core.JsonHelper.GetSettings()
   at NewsletterStudio.Core.JsonHelper.DeserializeObject[T](String json)
   at NewsletterStudio.Core.Persistence.Dtos.Mappers.DtoTransactionalEmailMapper.ToDomainModel(ITransactionalEmailDto dto)
   at NewsletterStudio.Core.Persistence.Repositories.Implement.TransactionalEmailRepository.<GetAll>b__12_0(TransactionalEmailDto x)
   at System.Linq.Enumerable.SelectListIterator`2.ToList()
   at NewsletterStudio.Core.Persistence.Repositories.Implement.TransactionalEmailRepository.GetAll()
   at NewsletterStudio.Core.Services.TransactionalEmailService.CleanLogBasedOnSettings(DateTime now)
   at NewsletterStudio.Web.Scheduling.ScheduledTransactionalCleanupRecurringTask.DoPerformExecuteAsync(Object state)

I hope it helps to identify bugs

Paul