Diffusivity not available

If you see an error like the following, there could be more than one reasons for it. The probable reasons are listed after the image.please know that the pressure is too low and the system is vaporizing to gaseous phase.

• Pressure lower than dew point pressure
• Temperature too high causing vaporization of the system
• Not enough liquid phase present
• Too much gaseous inflow resulting into stripping of the liquid phase