I had used an AppWizard of a hosting provider to install my WordPress site at beta.mysite.com.
Then I created my pages and then, I did a silly thing, because I simply changed in the WP Admin Settings the websites URL to http://www.mysite.com.
This resulted in an error message and now I can't log into the WordPress admin area anymore.
What file do I need to change either get access to the http://www.mysite.com admin area or alternatively to change back the root directory to bet.mysite.com again.
Thanks in advance for your help!