Web Part Error: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type PostPaidToPrePaid.VisualWebPart1.VisualWebPart1, PostPaidToPrePaid, Version=1.0.0.0, Culture=neutral, PublicKeyToken=bdf4d774b05e9b3a could not be found or it is not registered as safe. Correlation ID: 43b6b9a1-bb24-f05f-bf12-afd32ec165e3.

Error Details:
[UnsafeControlException: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type PostPaidToPrePaid.VisualWebPart1.VisualWebPart1, PostPaidToPrePaid, Version=1.0.0.0, Culture=neutral, PublicKeyToken=bdf4d774b05e9b3a 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)