face recognition GUI error

Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback Error while evaluating Button PrivateButtonPushedFcn.

help to solve this error in face recognition GUI

[Walter Roberson]

Is the code NLSIGCOVID19Lab ?

[Sanika Patil]

No sir.. It's matlab real time face recognition code for creating GUI

[Macro]

To check the private button. Make sure the function is correctly defined. Verify the MATLAB path.