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wpdberror on frontend submission form

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  • July 7, 2025 at 4:04 PM #48539
    P. ZeylstraP. Zeylstra
    Participant

    The fields in the frontend submission won't show anymore correct. I'm getting this error:

    <p class="wpdberror">WordPress databasefout: [Got a packet bigger than 'max_allowed_packet' bytes]<br>

    What can I do to solve this?

    July 7, 2025 at 7:24 PM #48540
    P. ZeylstraP. Zeylstra
    Participant

    It is now displaying again in the way it should (I disabled WP debug), but I am unable to make any changes to a form, as they are not being saved. I receive the message ‘Invalid request. Please try again.’

    July 7, 2025 at 9:18 PM #48541
    PeterPeter
    Moderator

    Hello,

    The issue max_allowed_packet means that you're trying to send (usually via a query or form submission) a packet of data larger than the MySQL server is configured to accept. You can contact your hosting support and ask them to check the max_allowed_packet value of your database. If it is too low (less than 64MB), please increase this value.

    If it doesn't help, please try to create a full backup of your site and databases. Then access the database, table wp_options, delete the option name mbfs_keys and recheck the issue.

    July 8, 2025 at 3:59 PM #48546
    P. ZeylstraP. Zeylstra
    Participant

    Thanks. De website is shared hosted, so I can't adjust the value. I've deleted the mbfs_keys. For now that solves it.

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