Fatal error: Uncaught TypeError: Argument 1 passed to WP_Translation_Controller::set_locale() must be of the type string, null given, called in /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n.php on line 804 and defined in /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n/class-wp-translation-controller.php:87
Stack trace:
#0 /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n.php(804): WP_Translation_Controller->set_locale(NULL)
#1 /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n.php(1466): load_textdomain('better-wp-secur...', '/var/www/vhosts...', NULL)
#2 /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n.php(1483): _load_textdomain_just_in_time('better-wp-secur...')
#3 /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n.php(195): get_translations_for_domain('better-wp-secur...')
#4 /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n.php(307): translate('error', 'better-wp-secur...')
#5 /var/www/vhosts/bwp.nu/httpdocs/wp-content/plugins/better-wp-security/core/modules/global/settings.php(10): __('error', 'better-wp-secur...')
#6 in /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n/class-wp-translation-controller.php on line 87

Fatal error: Uncaught TypeError: Argument 1 passed to WP_Translation_Controller::set_locale() must be of the type string, null given, called in /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n.php on line 804 and defined in /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n/class-wp-translation-controller.php:87
Stack trace:
#0 /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n.php(804): WP_Translation_Controller->set_locale(NULL)
#1 /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n.php(960): load_textdomain('default', '/var/www/vhosts...', NULL)
#2 /var/www/vhosts/bwp.nu/httpdocs/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#3 [internal function]: WP_Fatal_Error_Handler->handle()
#4 {main}
  thrown in /var/www/vhosts/bwp.nu/httpdocs/wp-includes/l10n/class-wp-translation-controller.php on line 87