“Attempting to call method ‘FlowCanvas.ValueOutput1[[System.DateTime, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]::.ctor’ for which no ahead of time (AOT) code was generated.”,
it shows that you need to add the “DateTime” type in your FlowCanvas Preferred Types Editor and re-generate the AOT Classes.