Error

Web Part Error: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type RSA.Internet.FNOL.UI.WebParts.FourInOne.FourInOne, RSA.Internet.FNOL.UI, Version=1.0.0.0, Culture=neutral, PublicKeyToken=30f1534845f68e1b could not be found or it is not registered as safe. Correlation ID: 741b36a1-744e-707b-f37b-6b8117f36601.

Error Details:
[UnsafeControlException: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type RSA.Internet.FNOL.UI.WebParts.FourInOne.FourInOne, RSA.Internet.FNOL.UI, Version=1.0.0.0, Culture=neutral, PublicKeyToken=30f1534845f68e1b 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)