PHP-Fails

Hi!

Today i got the following fail-message from CRM:

Ein Fehler vom Typ E_ERROR wurde in der Zeile 319 der Datei /usr/share/webapps/wordpress/wp-content/plugins/contact-form-entries/includes/data.php verursacht. Fehlermeldung: Uncaught TypeError: Unsupported operand types: int * string in /usr/share/webapps/wordpress/wp-content/plugins/contact-form-entries/includes/data.php:319
Stack trace:
#0 /usr/share/webapps/wordpress/wp-content/plugins/contact-form-entries/contact-form-entries.php(2518): vxcf_form_data->get_entries()
#1 /usr/share/webapps/wordpress/wp-content/plugins/contact-form-entries/contact-form-entries.php(2775): vxcf_form::get_entries()
#2 /usr/share/webapps/wordpress/wp-content/plugins/contact-form-entries/includes/plugin-pages.php(689): vxcf_form::download_csv()
#3 /usr/share/webapps/wordpress/wp-includes/class-wp-hook.php(303): vxcf_form_pages->setup_plugin()
#4 /usr/share/webapps/wordpress/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters()
#5 /usr/share/webapps/wordpress/wp-includes/plugin.php(470): WP_Hook->do_action()
#6 /usr/share/webapps/wordpress/wp-admin/admin.php(175): do_action()
#7 {main}
  thrown

Du you already know the problem?