A 500 server error is a generic message given when an unexpected condition was encountered and no more specific message is suitable.
101 Switching Protocols
203 Non-authoritative Information
204 No Content
205 Reset Content
206 Partial Content
208 Already Reported
226 IM Used
300 Multiple Choices
301 Moved Permanently
303 See Other
304 Not Modified
305 Use Proxy
307 Temporary Redirect
308 Permanent Redirect
A full list of http status codes can be found at https://httpstatuses.com/
Receiving a Internal Server Error not listed
ERROR: The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, webmaster@#####.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Action:Contact hosting company.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache/2.2.15 (Unix) mod_ssl/2.2.15 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/126.96.36.19935 Server at www.##### Port 443
Database error in vBulletin :
mysql_connect() [function.mysql-connect]: Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (2) /home/#######/public_html/vb/includes/class_core.php on line 311
Action: Web host needs to reboot server.