Rigify Generate Rig not working! Please help!

I’m trying to rig my character and Rigify is not working at all! I created the base rig that Rigify uses to create the full rig, but when I hit spacebar and click “Rigify Generate Rig”, all I get is a basic armature with just 2 bones. What am I doing wrong? If anyone could help out, I very much appreciate it!

Here is the .blend file: Andy.blend (1.24 MB)

Edit: I would really appreciate it if someone could help me! This error is really starting to get on my nerves!