export to excel error

  • Hi everybody!
    I’ve been using this pluging for long time without any issue, but this summer I’ve upgraded my server to php8 and to the Wordpres latest versión. Now I’m getting an error when I try to export one of my forms to Excel.

    Se ha producido un error del tipo E_COMPILE_ERROR en la línea 529 del archivo /var/www/html/kurkudieskola.org/wp-content/plugins/advanced-cf7-db/admin/class/PHPExcel/Shared/String.php. Mensaje de error: Array and string offset access syntax with curly braces is no longer supported

    Any idea to solve this problem?

    Thanks in advance

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