I need to import rss web part but I have this error:

ERROR: Error importing 'Web parts' objects (RSS Reader)
Message: Access to the path 'C:\Inetpub\vhosts\httpdocs\CMSFiles' is denied. Stack Trace: at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.Directory.InternalCreateDirectory(String fullPath, String path, DirectorySecurity dirSecurity)
at System.IO.Directory.CreateDirectory(String path, DirectorySecurity directorySecurity)
at CMS.DirectoryProviderDotNet.DirectoryProvider.CreateDirectory(String path)
at CMS.DirectoryUtilities.DirectoryHelper.EnsureDiskPath(String path, String startingPath)
at CMS.SiteProvider.MetaFileInfoProvider.SaveFileToDisk(String siteName, String guid, String fileName, String fileExtension, Object fileData, Boolean deleteOldFiles, Boolean synchronization)
at CMS.SiteProvider.MetaFileInfoProvider.SetMetaFileInfoInternal(MetaFileInfo metaFile, GeneralConnection conn)
at CMS.SiteProvider.MetaFileInfoProvider.UpdateMetaFiles(Int32 objectId, String objectType, Int32 siteId, DataTable filesDT, Int32 filesObjectId, LoadDataEventHandler onLoadData, Boolean logSynchronization)
at CMS.CMSImportExport.ImportProvider.UpdateObject(SiteImportSettings settings, IInfoObject infoObj, Boolean siteObject, DataSet ds, TranslationHelper th, Boolean updateChild, Int32 targetSiteId, ProcessObjectEnum process, Hashtable importedParentIDs, ArrayList postProcessList)
at CMS.CMSImportExport.ImportProvider.ImportObjects(SiteImportSettings settings, DataSet ds, String objectType, Boolean siteObjects, TranslationHelper th, Boolean importChild, ProcessObjectEnum processType, Hashtable importedParentIDs)


Can someone help me what error is this?