Error utf8: Could not save menu settings.

  • trying to save a new order to the menu, the error that appears is:

    Error: Could not save menu settings.

    Last database error: “Error en la base de datos de WordPress: Ha fallado el procesamiento del valor del siguiente campo: option_value. El valor facilitado puede ser demasiado largo o contener datos no válidos.”

    Warning: The wp_options database table uses the outdated utf8 character set. This can prevent you from saving settings that contain emojis, certain Chinese characters, and so on. It is recommended to convert the table to the utf8mb4 character set.

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  • Plugin Author Janis Elsts

    (@whiteshadow)

    It sounds like some of your admin menu items contain emojis or other Unicode characters that are not supported by your database. This is uncommon, but there are some plugins that add emojis to their admin menu titles (for example).

    I think there are a few options:

    • Convert the wp_options table to the utf8mb4 character set. I’m not a database expert, but there are some tutorials out there that explain how to do this.
    • Remove the plugin that adds special characters to its admin menus. This might not be practical if the plugin is one that you really need.
    • Try to find a different menu editing plugin that doesn’t need to save menu titles in the database. I can’t think of any suitable plugins off the top of my head, but some probably exist. For example, plugins that don’t have the ability to edit menu titles might not be affected by this particular issue because they never try to store the title in the database.
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