Not able to inflate my bike tyre
The pump looks fine. You should fiddle with the pin in the valve (tap it a bit with a screwdriver) until it leaves some air out (dose your tapping from "just a bit" to "try to firmly push the pin inside the tube").

If nothing cames out, try to spray some wd40 on the valve.

If nothing, it may mean the valve is really stuck ... did you use some foam or similar products to fix a puncture?