What is Error 500?

Just an hour ago. The site encountered an error that makes it unaccessible.

The site says it was an error 500.

But what is error 500 and how to fix it?

A 500 internal server error do occur when a browser encounter problem with a website server. This error is cause by many things, e.g invalid permissions, invalid ownership, bad lines in your php.ini or .htaccess file, invalid requests in the script, e.t.c.
Generally, this is how the error is display;

The 500 Internal Server Error message might be seen in any number of ways because each website is allowed to customize the message. Here are several common ways that you might see the HTTP 500 error:

1. 500 Internal Server Error

2. HTTP 500 – Internal Server Error

3. Internal Server Error

4. HTTP 500 Internal Error

5. 500 Error

6. HTTP Error 500