Modeling reverse phase chromatography by CADET

Hello everyone,
Has anyone attempted to model the separation of peptides by reverse phase chromatography using CADET? What model is commonly used in CADET?I have chosen the Mobile Phase Modulator Langmuir (MPM) model, but currently I am struggling to find initial values for the model parameters. The parameters are incorrect and the calculation time is very long. Is there anyone who has developed a reverse phase chromatography model for peptide separation using CADET to communicate with?Or guide me on what to do next, thank you very much.

Hello everyone, when I am fitting the adsorption parameters. What is the reason for the continuous error message as shown below? How to make modifications?

Error:Evaluation of Comparator failed at [70.56860006 9.07499766 59.09685435 41.42399396] with Error “Simulation shape does not match experiment”. Returning bad metrics.