Hello i have a site on ISPConfig system And sundently i can uploade files throw the site there is bigger than 150 kb. If i uploade a file there is 120 kb it will uploade it. What can is the problem? The text it say when it try to uploade a picture bigger than 150 kb. ERROR 500 - Internal Server Error! The following error occurred: The requested URL caused an internal server error. If you get this message repeatedly please contact the webmaster. Powered by ISPConfig
You got an error, so the error.log is the one which contains the error message. You can get the last errors from the log with the tail command. e.g. tail -n 100 error.log
If this is not your server then you might contact the administrator which is in charge of the server to fix the issue for you. Like I explained above, you or the administrator of the serve will find the reason for the error in the error.log of the website.