My software program doesn't work

when I open software ,it says software catalog is being loaded and nothing appears. Any suggestions?

From this one sentence we can not understand what you are doing.

Please explain much. much more. Like:
are you using a desktop, which one;
which program do you start and how.

try running the app from a terminal window (like konsole or gnome terminal or xterm etc)
you can diagnose the issues from the console output

When you say “My software program”
That sounds like you’re coding your own app.

The error you’re seeing generally means that your app is failing to compile,
What language are you coding, and what tools are you using to write your app (and what compiler are you using)?