Setup completed, site does not work.
BLANK PAGE
Enable error logging and reproduce. The log names the cause.
Usually a PHP fatal error, a missing extension, or memory exhaustion.
500 ERROR
Check the error log first.
Rename .htaccess and retest. A syntax error there, or directives the server does not permit, will produce this.
Check permissions: a file at 777 may be refused execution.
404 ON EVERYTHING
The document root may point at the wrong directory. Check cPanel > Domains > Document Root.
Or the files are in a subdirectory inside public_html rather than directly in it.
REDIRECT LOOP
The application's configured URL disagrees with a redirect. Check the site URL setting and any forced HTTPS.
DATABASE CONNECTION ERROR
Credentials in the configuration file do not match what exists. Compare against cPanel > MySQL Databases, remembering the prefix.
CSS MISSING, PAGE UNSTYLED
The site URL is wrong, so stylesheets load from the wrong location. Correct it in the configuration.
