Cannot gain access to my website. Created subdomain and suddenly went all wrong.

Help really needed on this one. I have screwed up again :disappointed: I created a subdomain in cPanel, Softaculous and things seemed to be initially ok. However, I can now no longer gain access to my main website via the browser and the subdomain would not work either. So I deleted the subdomain installation in Softaculous and in cPanel file manager thinking that would fix it. Wrong! I still can no longer gain access to my main domain. The only way I can gain access to my website is via Softaculous/admin. When inside the site I can mover around the dashboard, however when I go to view a page or site...blank screen.
Help really needed here...