malwarebyte's antimalware problem?

i have recently download a copy of this program version 1.50. after i install and update it, i have it perform a full scan. after a few minute, it have a error message pop up and said"run time error 6: overflow." i did some research on this error 6 and reinstall and update the software again, but the error message did not go away. i repeat this method for several times but the error message still pop up whenever i try to scan. how can i get rid of this error message and scan my computer?