If Omeka doesn't seem to be behaving correctly, for whatever reason, there are steps you can take to get more descriptive error messages. These are turned off by default, but can be used during the production of an Omeka site for troubleshooting.
Display Error Messages
You can change some configuration settings in Omeka to display error messages directly on the screen.
- Open the .htaccess file in the root of your Omeka installation, and change the value of 'php_value display_errors' to 1.
- Open 'application/config/config.ini', and change the value of 'debug.exceptions' to true
- Return to the page in Omeka that is causing the error. Do your best to repeat whatever originally caused the error, then send us the error message that is displayed on your screen.
- Be sure to disable these settings again once the problem is resolved.
Activate Error Logging
If you'd prefer to not have your error messages publicly displayed on your site, you can activate error logging. Activating error logging will log any errors encountered by Omeka to a file in 'application/log' directory of Omeka. You can then post to the forum or email directly to us.
- change permissions on your installation so that the following file is writable by your webserver : application/logs/errors.log
- edit your application/config/config.ini file so that the value for "log.errors" is set to true
- do your best to repeat whatever originally caused the error, then send us the contents of the errors.log file
