Welcome to the forum!
How did you try to generate the gcode? Did you use the Gcodetools extensions? Or some other extension? Or some other 3rd party program? Or possibly the XY Plotter can do that? I'm not familiar with it.
When I looked at your SVG file, I notice that the entire image is in a group. That possibly could prevent the gcode from generating, depending on how you tried to do it. But we need to know how you tried to generate it before we can figure it out.
Although I doubt if it would prevent the gcode, I notice the dots at the end of the lines are Circles, rather than Paths. Some programs might not convert the Circle shape to gcode. Path menu > Object to Path will fix that, if it turns out to be a problem.
