I have problem when i create user administration account and try install OJS?

[ctgraham]

With an HTTP 500 error, you’ll want to look in your webserver’s error log (may also be known as the PHP error log) to find the error message.

When I click some button or follow some link, I'm left with a blank page. What do I do?

Check your webserver error log Usually, this indicates that a PHP error has occurred and the message has been sent to your web server or system log file. Check there – e.g. /var/log/apache/error.log, although the exact location will depend on your server configuration – for further details. Check your file permissions If you haven’t installed OJS yet, then the most likely cause is a problem with file permissions in your cache/ or cache/t_compile directories. See docs/README for information on…