Hi Ben,
You can't be using CrystalDecisions.Web, Version=14.0.3500.0, Culture=neutral... and CR for VS 13.09 in the same app.
That is likely the issue. Use one or the other, not both. CR for VS doesn't have any Enterprise dll so you can't query the CMS to get a report using 13 runtime.
Looks like you are mixing the CR for VS with BI 4.0 .NET SDK...
Don