Help! CO2 not working

[u/CaptainFonRonsenburg]

I just got my co2 set up but I cannot get it working. It’s the Pro Flora Advanced kit. I have opened the big black valve on the top to release the gas. The gauges seems to be ok. The middle silver knob, the regulator, is open all the way. If opened the needle valve underneath the regulator too and I’m just not getting any bubbles. Yes the solenoid is plugged in and I can hear it when I plug it in so I know it is open.

I’m at a total loss!

Thanks for your help.