Do you know which version of Malwarebytes for Mac you're running? You can easily see if you have version 3 or 4 of the program by looking at the main Dashboard. We encourage users to update to the latest version of Malwarebytes to stay protected.
Version 3 Dashboard
The following image is an example of the screen layout for Malwarebytes for Mac version 3:
Version 4 Dashboard
The following image is an example of the screen layout for Malwarebytes for Mac version 4: