** ERROR 99597 ** The preform porosity calculated from the properties of the preform assigned to one or more preform surface elements is outside the expected range. Please correct the preform porosity and permeability model coefficients and rerun the analysis.
The preform surface (fiber mat) porosity is outside of the expected range, meaning it is either too small or too large.
Check the properties of the preform surface by right-clicking an element and selecting Properties. Then click Edit, Preform Properties and change the Preform porosity and permeability values if required. Then, re-run the analysis.