How to get more information about error 500 - internal server error?

Question

I use $ajax requests in many parts of my PHP website everything was working perfectly until few days ago all my $ajax requests start giving e

Answer 1

Have you checked the file permissions on the server? The webserver user must be able to read the file, you want to access. See also (https://stackoverflow.com/a/17626018/3972213)

Update: If you are using apache2 and have access to the configuration, you can get more information about each request by turning on the forensic log (http://httpd.apache.org/docs/2.2/mod/mod_log_forensic.html). Hope this helps.