Fatal error: Uncaught Error: Call to undefined function FernleafSystems\Wordpress\Plugin\Shield\Controller\determine_locale() in /usr/home/sevencomp/domains/kancelaria-csp.pl/public_html/wp-content/plugins/wp-simple-firewall/src/lib/src/Controller/Controller.php:1938 Stack trace: #0 /usr/home/sevencomp/domains/kancelaria-csp.pl/public_html/wp-includes/class-wp-hook.php(298): FernleafSystems\Wordpress\Plugin\Shield\Controller\Controller->overrideTranslations('/usr/home/seven...', 'wp-simple-firew...') #1 /usr/home/sevencomp/domains/kancelaria-csp.pl/public_html/wp-includes/plugin.php(203): WP_Hook->apply_filters('/usr/home/seven...', Array) #2 /usr/home/sevencomp/domains/kancelaria-csp.pl/public_html/wp-includes/l10n.php(581): apply_filters('load_textdomain...', '/usr/home/seven...', 'wp-simple-firew...') #3 /usr/home/sevencomp/domains/kancelaria-csp.pl/public_html/wp-includes/l10n.php(718): load_textdomain('wp-simple-firew...', '/usr/home/seven...') #4 /usr/home/sevencomp/domains/kancelaria-csp.pl/public_html/wp-content/p in /usr/home/sevencomp/domains/kancelaria-csp.pl/public_html/wp-content/plugins/wp-simple-firewall/src/lib/src/Controller/Controller.php on line 1938