Trouble with Saving or Displaying Content

If you're seeing a "cannot save, 500 error message, internal server error," when you try to save, or content is not loading or appears blank, try clearing your browser's cache and cookies.

How to Clear Your Browser's Cookies

How to Clear Your Browser's Cache

Anti-virus software could also be the cause of these errors. Please check with your anti-virus provider to see how to add ck12.org to their list of supported websites.

How to create a list of supported websites with Kaspersky

Browser plugins can also cause errors to occur. One known plugin is the Ginger spell checker. This plugin can cause save failures if *.ck12.org is not added to the Disable Ginger in these websites: section in the settings for the plugin.

How to disable Ginger plugin for a specific website

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