Web Part Error: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type DPC.WebSite.PageControls.WebParts.EventDetailsWebPart.EventDetailsWebPart, DPC.WebSite.PageControls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=2245346285939cc0 could not be found or it is not registered as safe. Correlation ID: 0c0a5ba1-9b3d-f05f-f306-041500b50253.

Error Details:
[UnsafeControlException: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type DPC.WebSite.PageControls.WebParts.EventDetailsWebPart.EventDetailsWebPart, DPC.WebSite.PageControls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=2245346285939cc0 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)