Fix nil pointer dereference.
Fix nil pointer dereference.

beni55/Taipei-Torrent,Dataman-Cloud/Taipei-Torrent,FlexibleBroadband/Taipei-Torrent,beni55/Taipei-Torrent,ansonwzj/CPSC416Taipei,ansonwzj/CPSC416Taipei,Dataman-Cloud/Taipei-Torrent,FlexibleBroadband/Taipei-Torrent