Bug au paramétrage

Bonjour,
J'ai le bug ci dessous en voulant paramétrer le plug-in dans WordPress (chez Hostinger).
Pouvez vous m'aider? Merci  

[10-May-2023 09:51:19 UTC] PHP Fatal error:  Uncaught Error: Non-static method HT_Ultimate_Favicon::issue_message() cannot be called statically in /home/u5782142/domains/reiki-sq.fr/public_html/wp-content/plugins/favhero-favicon-generator/ht-ultimate-favicon.php:314
Stack trace:
#0 /home/u5782142/domains/reiki-sq.fr/public_html/wp-content/plugins/favhero-favicon-generator/php/ht-ultimate-favicon-settings.php(75): HT_Ultimate_Favicon::create_icons_from_attachment_id()
#1 /home/u5782142/domains/reiki-sq.fr/public_html/wp-includes/class-wp-hook.php(308): HT_Ultimate_Favicon_Settings_Page->create_admin_page()
#2 /home/u5782142/domains/reiki-sq.fr/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#3 /home/u5782142/domains/reiki-sq.fr/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()
#4 /home/u5782142/domains/reiki-sq.fr/public_html/wp-admin/admin.php(259): do_action()
#5 /home/u5782142/domains/reiki-sq.fr/public_html/wp-admin/options-general.php(10): require_once('/home/u578214...')
#6 {main}
  thrown in /home/u5782142/domains/reiki-sq.fr/public_html/wp-content/plugins/favhero-favicon-generator/ht-ultimate-favicon.php on line 314

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