Error Could not load type 'Stripe.StripeChargeService' ?

I downloaded https://www.foxnetsoft.com/nopstripedirectpayment to trial it.  The current version errors though when loaded into a v3.9 nop commerce site.  I'll post the stack trace below but not sure how well it be recieved through an enquiry form:

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeLoadException: Could not load type 'Stripe.StripeChargeService' from assembly 'Stripe.net, Version=34.0.0.0, Culture=neutral, PublicKeyToken=null'. at Nop.Plugin.Payments.Stripe.StripeProcessor..ctor(ISettingService settingService, ICurrencyService currencyService, ICustomerService customerService, CurrencySettings currencySettings, IWebHelper webHelper, IOrderTotalCalculationService orderTotalCalculationService, IOrderService orderService, StripePaymentSettings stripePaymentSettings, ILocalizationService localizationService, ILogger logger) --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, StackCrawlMark& stackMark) at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) at System.Activator.CreateInstance(Type type, Object[] args) at Nop.Core.Infrastructure.DependencyManagement.ContainerManager.ResolveUnregistered(Type type, ILifetimeScope scope) at Nop.Core.Plugins.PluginDescriptor.Instance[T]() at Nop.Admin.Controllers.PluginController.PreparePluginModel(PluginDescriptor pluginDescriptor, Boolean prepareLocales, Boolean prepareStores, Boolean prepareAcl) at Nop.Admin.Controllers.PluginController.<ListSelect>b__20_0(PluginDescriptor x) at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext() at System.Linq.Buffer`1..ctor(IEnumerable`1 source) at System.Linq.OrderedEnumerable`1.<GetEnumerator>d__1.MoveNext() at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) at Nop.Admin.Controllers.PluginController.ListSelect(DataSourceRequest command, PluginListModel model) at lambda_method(Closure , ControllerBase , Object[] ) at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) at System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState) at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d() at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActio

Check if you have other Stripe plugin with old Stripe kernel library.
Remove it from the Plugins folder and try to install my plugin.
Write me about result.