Can't Use Computer Vision System Toolbox

I am trying to use the Computer Vision System Toolbox, specifically pointTracker. However, when I type:

vision.PointTracker

I get the following error:

Can't reload '/Applications/MATLAB_R2018a.app/bin/maci64/libmwocv.dylib'

Error in vision.PointTracker (line 252)
        obj.pTracker = vision.internal.PointTracker;

Does anyone have any idea why this is happening? I've tried uninstalling and reinstalling the computer vision toolbox, and I tried downloading the latest version of Matlab (R2018a) but it did nothing.

[Eyshika Agarwal]

Did you get any way to solve it ? i am getting this error specifically while using disparity function, which i was able to use few days ago. but suddenly getting this error