Few hours ago, one of my site (using wordpress ) experienced 500 Internal Server Error. Search here and there too looking for how to fix it. One good site (that i forgot the name), wrote how to solve it. I follow the step by step, but there is no change. I'm getting frustated, until I found someone's site that also got same internal server error. It was at wordpress.org, but forgive me I also not keep the link.
So then, from the first site said that the problem is could be the plugin, he/she give advice to disable the plugin. I assumed that all plugin, then from Cpanel, I deleted all the plugin except Akismet. What happened then? My site still 500 error. This makes me desperated because, the traffic of the site is increasing, so some webmaster said that is not good for SEO if your site had an error. Then I follow the other step (still at the first site), to add memory limit to your wp-config.php. I followed that step, but it still error.
Then I came to wordpress.org forum, and someone said it could be the .htaccess. Then I open my .htaccess file from my cpanel and found strange codes ( I'm not an expert, but just felt something is not going right), and below are the codes from your .htaccess after you first install wordpress.
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
So, if you had a 500 internal server error, maybe you should check .htaccess file from your cpanel. If you found something strange, then you can copy and paste code above to reset it to default format. But you should backup the existing .htaccess code, just in case if it does not solve the problem. I know this is not the only cause. But if you try this first and then you finished, but if you still got an error then you should contact your doctor.. :D. Maybe you should try to disable all plugin and then enabled it again one by one.
