Web Part Error: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type TVPortal.Publishing.Category.wpMenuLeftDaiBieuQuocHoi2, TVPortal.Publishing.Category, Version=1.0.0.0, Culture=neutral, PublicKeyToken=616514c961de576d could not be found or it is not registered as safe. Correlation ID: ad8522a1-f951-90a9-5115-a83a0da8b672.

Error Details:
[UnsafeControlException: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type TVPortal.Publishing.Category.wpMenuLeftDaiBieuQuocHoi2, TVPortal.Publishing.Category, Version=1.0.0.0, Culture=neutral, PublicKeyToken=616514c961de576d could not be found or it is not registered as safe.]
  at Microsoft.SharePoint.ApplicationRuntime.SafeControls.GetTypeFromGuid(Boolean isAppWeb, Guid guid, Guid solutionId, Nullable`1 solutionWebId, String assemblyFullName, String typeFullName, Boolean throwIfNotSafe)
  at Microsoft.SharePoint.WebPartPages.SPWebPartManager.CreateWebPartsFromRowSetData(Boolean onlyInitializeClosedWebParts)