Incorrect working with media items?

[ivanbuzyka]

Check the following feedback from marketplace:

MIHAELA RADU
02:18 PM on Aug 14, 2014

Successfully installed and used the module on an instance of Sitecore 7.0.
However, noticed this error thrown in the logs:

Could not resolve type name: Sitecore.VersionManager.Handlers.VersionAddedHandler (method: Sitecore.Configuration.Factory.CreateType(XmlNode configNode, String[] parameters, Boolean assert)).
Exception Details:

System.Exception: Could not resolve type name: Sitecore.VersionManager.Handlers.VersionAddedHandler (method: Sitecore.Configuration.Factory.CreateType(XmlNode configNode, String[] parameters, Boolean assert)).
at Sitecore.Diagnostics.Error.Raise(String error, String method)
at Sitecore.Configuration.Factory.CreateType(XmlNode configNode, String[] parameters, Boolean assert)
at Sitecore.Configuration.Factory.CreateFromTypeName(XmlNode configNode, String[] parameters, Boolean assert)
at Sitecore.Configuration.Factory.CreateObject(XmlNode configNode, String[] parameters, Boolean assert, IFactoryHelper helper)
at Sitecore.Events.Event.EventSubscribers.Add(String eventName, XmlNode configNode)
at Sitecore.Events.Event.GetConfigSubscribers()
at Sitecore.Events.Event.RaiseEvent(String eventName, Object[] parameters)
at Sitecore.Resources.Media.MediaRequestHandler.DoProcessRequest(HttpContext context, MediaRequest request, Media media)
at Sitecore.Resources.Media.MediaRequestHandler.DoProcessRequest(HttpContext context)
at Sitecore.Resources.Media.MediaRequestHandler.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

This appears to be thrown when a media item is accessed on the site, did anyone come across the same error?

Thanks