Web Part Error: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type SECBv2.Portal.ContactUs.VisualWebParts.AddContactUs.AddContactUs, SECBv2.Portal.ContactUs, Version=1.0.0.0, Culture=neutral, PublicKeyToken=619d7183ba27841b could not be found or it is not registered as safe. Correlation ID: 3714afa1-0832-b0ac-0c3d-58982a2ee61d.

Error Details:
[UnsafeControlException: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type SECBv2.Portal.ContactUs.VisualWebParts.AddContactUs.AddContactUs, SECBv2.Portal.ContactUs, Version=1.0.0.0, Culture=neutral, PublicKeyToken=619d7183ba27841b 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)