Guilin Sun
Ansys Employee

Currently we do not have script for CW pump. Please refer to this paper  L. G. Helt, Z. Yang, M. Liscidini, and J. E. Sipe, “Spontaneous four-wave mixing in microring
resonators,” Optics Letters , vol. 35, no. 18, pp. 3006–3008, Sep. 2010, doi:
https://doi.org/10.1364/OL.35.003006.

The error message shows it has illegal value. So please follow the example.