Hello Meriem
The error you are encountering can be caused if there is compatibly issue between the version of MATLAB you are using and the version that was used to create the MEX File.
Here is a snippet from MATLAB's MEX version compatibilty documentation:
"For best results, your version of MATLAB must be the same version that was used to create the MEX-file.
MEX-files use MATLAB runtime libraries. MEX-files are usually backward compatible, which means you can run a MEX-file that was created on an earlier version of MATLAB on later versions of MATLAB. If the MEX-file generates errors, recompile the MEX-file from the source code."
Adding documentation for your reference:
To resolve the error, try recompiling the MEX file in the same version as your MATLAB.
