Cheat engine 6.2

Please help

I have windows 7, and also made ​​bypass.
When you want to search for value in Cheat Engine 6.2 it gives me an error with the scan error. No readable memory not fund something like this, what's going on is I need to gunaddera

Why do you need to search a value if you want to add guns? Unless your trying to find codes you should just use a gun add table