nzbdroneerror

System.UnauthorizedAccessException: Access to the path 'C:\ProgramData\NzbDrone\bin\UI\AddSeries\addSeries.css' is denied.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.File.InternalCopy(String sourceFileName, String destFileName, Boolean overwrite, Boolean checkHost)
   at System.IO.FileInfo.CopyTo(String destFileName, Boolean overwrite)
   at NzbDrone.Common.Disk.DiskProviderBase.TransferFolder(String source, String target, TransferAction transferAction) in m:\BuildAgent2\work\328d72309b633a8\src\NzbDrone.Common\Disk\DiskProviderBase.cs:line 221
   at NzbDrone.Common.Disk.DiskProviderBase.TransferFolder(String source, String target, TransferAction transferAction) in m:\BuildAgent2\work\328d72309b633a8\src\NzbDrone.Common\Disk\DiskProviderBase.cs:line 208
   at NzbDrone.Common.Disk.DiskProviderBase.TransferFolder(String source, String target, TransferAction transferAction) in m:\BuildAgent2\work\328d72309b633a8\src\NzbDrone.Common\Disk\DiskProviderBase.cs:line 208
   at NzbDrone.Common.Disk.DiskProviderBase.CopyFolder(String source, String destination) in m:\BuildAgent2\work\328d72309b633a8\src\NzbDrone.Common\Disk\DiskProviderBase.cs:line 170
   at NzbDrone.Update.UpdateEngine.BackupAndRestore.Restore(String target) in m:\BuildAgent2\work\328d72309b633a8\src\NzbDrone.Update\UpdateEngine\BackupAndRestore.cs:line 36
   at NzbDrone.Update.UpdateEngine.InstallUpdateService.Start(String installationFolder, Int32 processId) in m:\BuildAgent2\work\328d72309b633a8\src\NzbDrone.Update\UpdateEngine\InstallUpdateService.cs:line 96
   at NzbDrone.Update.UpdateApp.Start(String[] args) in m:\BuildAgent2\work\328d72309b633a8\src\NzbDrone.Update\UpdateApp.cs:line 59
   at NzbDrone.Update.UpdateApp.Main(String[] args) in m:\BuildAgent2\work\328d72309b633a8\src\NzbDrone.Update\UpdateApp.cs:line 45