Web Part Error: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type Beacon.Web.SharePoint.Sites.WebParts.Beacon_WebParts.PortalReg.PINEntryOrRequestWebPart.PINEntryOrRequestWebPart, Beacon.Web.SharePoint.Sites, Version=1.0.0.0, Culture=neutral, PublicKeyToken=ab81e8434af5999e could not be found or it is not registered as safe. Correlation ID: 465271a1-3e40-10e7-c3d4-bfb4a6cac667.

Error Details:
[UnsafeControlException: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type Beacon.Web.SharePoint.Sites.WebParts.Beacon_WebParts.PortalReg.PINEntryOrRequestWebPart.PINEntryOrRequestWebPart, Beacon.Web.SharePoint.Sites, Version=1.0.0.0, Culture=neutral, PublicKeyToken=ab81e8434af5999e 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)