If you get the Malwarebytes not an opening problem on your device. That is the old version and incomplete download file problem. Because during the download some files are missing due to network issues. So you need to delete the application from the device and try to download it again on the computer and install it.
https://www.technicalsquad.net/tech/how-to-fix-malwarebytes-popup-wont-go-away-error/
