This is quite a simple fix. You have two separate ground nets. Each one has a separate name. GND12 and GND. I see what you are trying to do. But in order to physically connect the two nets together, you must do one of two things:
1-Rename GND12 to GND.
2-Phyiscally wire them together in your schematics.
But both of these cases will give you a problem. When you attempt to pour your polygon, it will pour both nets as one polygon. I don't know exactly how to fix that. You might just need to use a 0 ohm resistor to connect them together. Or change the shape of your polygon pours.
This is quite a simple fix. You have two separate ground nets. Each one has a separate name. GND12 and GND. I see what you are trying to do. But in order to physically connect the two nets together, you must do one of two things:
1-Rename GND12 to GND.
2-Phyiscally wire them together in your schematics.
But both of these cases will give you a problem. When you attempt to pour your polygon, it will pour both nets as one polygon. I don't know exactly how to fix that. You might just need to use a 0 ohm resistor to connect them together. Or change the shape of your polygon pours.
