You have used the wrong label types. You have used Net Class Directive Labels, and the only thing those do is put a net in a specific netclass. These labels do not make connections at all.
The simplest solution is to replace all the GNDQ labels with GND symbols from the “Power” library, and replace the +Vs label with one of the power symbols from the power library, similar to the +9V symbol you have used.
Update KiCad. The current version is V7.0.9. Increments in the third digit are bug fix release, and these releases are made about once a month. Each month around 70 bugs are fixed. You can see an overview of this on Release Notes | KiCad EDA