How may I improve graphics with lightweight pipeline?

Recently I switched to shadergraph and It requires lightweight pipeline so I switched to it but I was then unable to use post processing (from asset store) then after a while I figured out there’s a V2 that allowed it to be used with post processing so while setting it up which I’m pretty sure I did right I get a black screen when I enable any effect does anyone know when hat could be causing it?

I use unity 2019 stable version (the oldest)