When I click on the site collection features>Activate(Theme) it is leading to this error. This is happening when I click on site Actions>Create new site and selecting blog under sites and workspaces. Please help me with troubleshooting this.I have done some research and saw that some DLLs might be missing or some references are not working properly.

Feature '9aafa318-8619-4726-8531-660edf9221ff' could not be installed because the loading of event receiver assembly "DCCTheme, Version=1.0.0.0, Culture=neutral, PublicKeyToken=43bbb856e4d7825b" failed: System.IO.FileNotFoundException: Could not load file or assembly 'DCCTheme, Version=1.0.0.0, Culture=neutral, PublicKeyToken=43bbb856e4d7825b' or one of its dependencies. The system cannot find the file specified. File name: 'DCCTheme, Version=1.0.0.0, Culture=neutral, PublicKeyToken=43bbb856e4d7825b' at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.Reflection.Assembly.Load(String assemblyString) at Microsoft.SharePoint.Administration.SPFeatureDefinition.get_ReceiverObject()

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].

Troubleshoot issues with Windows SharePoint Services.

DCCTheme does not appear to be an out-of-the-box feature. Check with the developer(s).