http error 500 wordpress

How to "fix http error 500 wordpress"?

1. Back up your site.
2. Have a go at reloading the page.
3. Clear your program store.
4. Access your mistake logs.
5. Check for the "Mistake Establishing a Database Connection."
6. Search for consent mistakes.
7. Increment your PHP memory limit.
8. Check for issues with your .htaccess record.
9. Search for coding or grammar blunders in your CGI/Perl script.
10. Get some information about potential worker issues.