VB: run-time error '1004': Application-defined or object-defined error

[texian2112]

One of my colleagues created a macro enabled spreadsheet which is supposed to output values when I click on the 'GO' button but I get the error--VB: run-time error '1004': Application-defined or object-defined error-- when I click the button. When I try to debug I get the following. Any help would be appreciated. Thanks