couldn't connect to display ":0" Issue

I am using Ubuntu 23.10 . And i was installing lcogtsnpipe. I have installed docker and docker compose. I have completed till the step 12 (the necessary changes are made in the yml file). But inside the container when i run xeyes or ds9 its saying couldn't connect to display ":0" . In the host the X11 is properly running and xeyes/xclock is working properly