Select Same macro problems - does not run and "Project is unviewable"


Some time ago I installed the macro Select Same. It worked fine. Now I'm trying to use it so Tools > Macros > Run Macro, I choose JH_SelectSame and it does not run. Nothing happens. So I thought I would reinstall it but I also cannot because when I select the macro and hit DELETE, Corel prompts: "Project is unviewable".

I don't know what to do. Maybe manually remove macro files from Corel folder and install it again? But I'm afraid the same problem will occur one day. Please help.