Internal Server Error

[sea-legends74]

Good day!
More recently, hosting began to give "500 error" for no apparent reason.
Please fix it.
Domain: slegends.pcriot.com
Server: stoli

[descalzo]

Any .php file should have permissions set to 0644 and subdirectories set to 0755

Any .htaccess file that uses mod_rewrite should use the line

RewriteBase /

at the top, above any RewriteRule

Are you using a CMS like Joomla or WordPress or a PHP based forum script?

Sometimes turning on the 'SEO friendly urls' will make changes in .htaccess that will cause the error.

[sea-legends74]

I'm using index.htm with this content:

<h1>IT WORKS!</h1>

Only this file with 644 permissions

[garrettroyce]

You should try the other suggestion that descalzo mentioned about .htaccess files. If you don't understand what you need to do, you can post the contents of this file here. A HTML page won't generate a 500 error on it's own, so there must be a problem before the index.htm file, which .htaccess is.