You need to check and then opt for the compatible version of Malwarebytes Technical Support for your computer. However, compatibility is not the issue in all cases. Many other possible reasons could be there. You need to inspect the reasons for the errors and then you should resolve them carefully. Call tech support centre for assistance.
More info- http://www.antivirusconsulting.com/blog/malwarebytes-crashes-during-scan-windows-7/