Error on instalation BrainTree Plugin or any plugin from nop-payments.com

I am replacing the Installed nopCommerce BrainTree plugin from nopCommcerce developers as it not support recurring payments so i replace it with nop-payments.com BrainTree Plugin but it giving me an error like on installation

Could not load type 'Nop.Services.Directory.ICurrencyService' from assembly 'Nop.Services, Version=3.9.0.0, Culture=neutral, PublicKeyToken=null'.

i have try another one i.e Stripe also it giving me same error.I am using 3.90 version.
kindly help me how to get rid of it

Complete Error detail in log section is:

System.TypeLoadException: Could not load type 'Nop.Services.Directory.ICurrencyService' from assembly 'Nop.Services, Version=3.9.0.0, Culture=neutral, PublicKeyToken=null'. at System.Signature.GetSignature(Void* pCorSig, Int32 cCorSig, RuntimeFieldHandleInternal fieldHandle, IRuntimeMethodInfo methodHandle, RuntimeType declaringType) at System.Signature..ctor(IRuntimeMethodInfo methodHandle, RuntimeType declaringType) at System.Reflection.RuntimeConstructorInfo.GetParametersNoCopy() at System.Reflection.RuntimeConstructorInfo.GetParameters() at Nop.Core.Infrastructure.DependencyManagement.ContainerManager.ResolveUnregistered(Type type, ILifetimeScope scope) in d:\OrbisBeta\nopCommerce_Store\Libraries\Nop.Core\Infrastructure\DependencyManagement\ContainerManager.cs:line 125 at Nop.Core.Plugins.PluginDescriptor.Instance[T]() in d:\OrbisBeta\nopCommerce_Store\Libraries\Nop.Core\Plugins\PluginDescriptor.cs:line 108 at Nop.Core.Plugins.PluginDescriptor.Instance() in d:\OrbisBeta\nopCommerce_Store\Libraries\Nop.Core\Plugins\PluginDescriptor.cs:line 118 at Nop.Admin.Controllers.PluginController.Install(FormCollection form) in d:\OrbisBeta\nopCommerce_Store\Presentation\Nop.Web\Administration\Controllers\PluginController.cs:line 325

Hi,

If it's third party plugin, it's better to contact the author. I think you should contact the nop-payments here or on their website.

Best,
Patryk

I have a similar problem, but with other error answer -

"We're sorry, an internal error occurred.
Our supporting staff has been notified of this error and will address the issue shortly.
We apologize for the inconvenience.
Please try clicking your browsers 'back' button or try reloading the home page.
If you continue to receive this message, please try again in a little while.
Thank you for your patience."

Still have got no any reply of support nop-payments.com

But, I saw some article (topic) about your problem there - http://helpdesk.nop-payments.com/knowledgebase.php?article=2

maybe it is will help you.

An23 wrote:
Please see the first question here