Support » Plugin: Contact Form by WPForms - Drag & Drop Form Builder for WordPress » Latest plugin update caused fatal error on line 409

  • Resolved bzwoman


    Error Details
    An error of type E_ERROR was caused in line 409 of the file wp-content/plugins/wpforms-lite/vendor/symfony/polyfill-mbstring/Mbstring.php. Error message: Call to undefined function Symfony\Polyfill\Mbstring\iconv()

    This fatal error crashed my site. I have had to deactivate the plugin. Please advise.

    • This topic was modified 1 month, 3 weeks ago by .
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  • I’m having a similar issue.

    I updated the WP Forms plug-in as recommended and now my site looks completely different and my hosting engine has confirmed there are errors associated with WP Forms. I deactivate and re-activate, and either way, something has changed and my website is corrupt.

    Plugin Support Ethan Choi


    Hi @bzwoman,

    I apologize for the trouble with that! The error message indicates there’s no iconv() function available in your PHP installation. To resolve this, please contact your host and ask to install iconv and mbstring PHP extensions.

    Hey @julesstcroix03,

    Sorry to hear that! When you get the chance, could you create a new post in our WPForms Lite support forum with the eror messages and/or screenshots of the issue?


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