Error when enabling plugin v1.02 on NOP v 3.8

Hello, We are trying to install this plugin on nopcommerce v3.8 and after install when we try to enable any features of the plugin the site crashes.
This is the error message;

Log level  Error
Short message  
Could not load file or assembly 'WebMarkupMin.Core, Version=2.2.2.0, Culture=neutral, PublicKeyToken=99472178d266584b' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
Full message  
System.IO.FileLoadException: Could not load file or assembly 'WebMarkupMin.Core, Version=2.2.2.0, Culture=neutral, PublicKeyToken=99472178d266584b' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) File name: 'WebMarkupMin.Core, Version=2.2.2.0, Culture=neutral, PublicKeyToken=99472178d266584b' at FoxNetSoft.Plugin.Misc.Pagespeed.Filters.MinifyHtmlFilter.Flush() at System.Web.HttpWriter.FilterIntegrated(Boolean finalFiltering, IIS7WorkerRequest wr) at System.Web.HttpResponse.FilterOutput() at System.Web.HttpApplication.CallFilterExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

Any ideas what the issue is, we have a noptemplates theme and plugins also installed.
Many thanks,
James

Check if you have such file WebMarkupMin.Core.dll in another folders.
Our plugin uses WebMarkupMin.Core 2.4.0.0.
Maybe another plugin uses this dll too.

Wow, you are good, yes this was in another plugin folder we did not use. I have deleted and now it works.
This is a really good plugin, the site is so much quicker.
I will order now. Many thanks, James