Humid air and outlet - vehicle cabin analysis

Good day experts of Altair, hope everyone its doing great
currently I´m trying to simulate a thermal comfort analysis for a cabin but I´m facing some problems and I would like advise from you:
1- First, im getting an error showed in the attached image related with the humid air which makes me think that may be Im not doing the setup properly. I defined the relative humidity to 40 (40%) at inlets and as initial condition of the whole domain of the cabin.
2- Also, the outlet of the cabin its supposed to be for recirculation of the air from the cabin to the HVAC system, Do you know if i need to define the outlet in a certain way for this case or if its okey to be defined as a simple outlet? Note: The HVAC system is not modeled in my analysis, just the cabin.
I attached some files of the analysis and if needed I can provide a bit more details, thanks in advance!