Frequently Asked Questions (FAQ)

This is often caused by a language file that has an unescaped special character in it.

Check the following:

  1. Temporarily remove any template related translation files, located in app/design/adminhtml/default/default/locale related to the other language used.
  2. If that resolves it the most often there is a single apostrophe the cause for a related JavaScript error.
    Escape them by using a backslash before it: “some text \' some more” or change the translation text to not using it.