A little while ago I created a website for a friend and in the process broke my own blog. What happened is that I had a subdomain on my domain where I prepared his site, then when he was happy I transferred to his own domain, except that by accident I changed the URL of my blog in the back office and since then it's a bit of a nightmare to get my site back to work.
I tried fixing the login.php and index.php files but wasn't successful. I'm sure it's something very simple that I need to do but I'm not an expert so I need some help.
Thanks anyone for your help :)