Hi BLOSSOM,
It looks like you are encountering a "does not exist" error for several of your generated MEX files. The MEX files are generated by MATLAB when you compile your Simulink model and contain the compiled code for your model.
Try rebuilding the model to generate the missing MEX files. You can do this by clicking the "Build" button in the Simulink model window or by running the "mex" command in MATLAB.
Regards,
Rishav Saha