ata Localize script data.
	 *
	 * @return array
	 */
	public function add_localize_script_data( $data ): array {
		if ( ! is_array( $data ) ) {
			$data = (array) $data;
		}

		if ( ! $this->is_enabled() ) {
			return $data;
		}

		$transient = get_transient( 'rocket_rucss_processing' );

		if ( false === $transient ) {
			return $data;
		}

		$data['notice_end_time'] = $transient;
		return $data;
	}

	/**
	 * Disables combine CSS if RUCSS is enabled when updating to 3.11
	 *
	 * @since 3.11
	 *
	 * @param string $old_version Previous plugin version.
	 *
	 * @return void
	 */
	public function set_option_on_update( $old_version ) {
		if ( version_compare( $old_version, '3.11', '>=' ) ) {
			return;
		}

		$options = get_option( 'wp_rocket_settings', [] );

		if ( 'local' === wp_get_environment_type() ) {
			$options['optimize_css_delivery'] = 1;
			$options['remove_unused_css']     = 1;
			$options['async_css']             = 1;
		}

		update_option( 'wp_rocket_settings', $options );
	}

	/**
	 * Updates safelist items for new SaaS compatibility
	 *
	 * @since 3.11.0.2
	 *
	 * @param string $old_version Previous plugin version.
	 *
	 * @return void
	 */
	public function update_safelist_items( $old_version ) {
		if ( version_compare( $old_version, '3.11.0.2', '>=' ) ) {
			return;
		}

		$options = get_option( 'wp_rocket_settings', [] );

		if ( empty( $options['remove_unused_css_safelist'] ) ) {
			return;
		}

		foreach ( $options['remove_unused_css_safelist'] as $key => $value ) {
			if ( str_contains( $value, '.css' ) ) {
				continue;
			}

			if ( str_starts_with( $value, '(' ) ) {
				continue;
			}

			$options['remove_unused_css_safelist'][ $key ] = '(.*)' . $value;
		}

		update_option( 'wp_rocket_settings', $options );
	}

	/**
	 * Display a notification on wrong license.
	 *
	 * @return void
	 */
	public function display_wrong_license_notice() {
		if ( ! $this->can_display_notice( false ) ) {
			return;
		}

		$main_message = __( "We couldn't generate the used CSS because you're using a nulled version of WP Rocket. You need an active license to use the Remove Unused CSS feature and further improve your website's performance.", 'rocket' );
		$cta_message  = sprintf(
			// translators: %1$s = promo percentage.
			__( 'Click here to get a WP Rocket single license at %1$s off!', 'rocket' ),
			'10%%'
		);

		$message = sprintf(
		// translators: %1$s = plugin name, %2$s = opening anchor tag, %3$s = closing anchor tag.
			"%1\$s: <p>$main_message</p>%2\$s$cta_message%3\$s",
			'<strong>WP Rocket</strong>',
			'<a href="https://wp-rocket.me/?add-to-cart=191&coupon_code=iamnotapirate10" class="button button-primary" rel="noopener noreferrer" target="_blank">',
			'</a>'
		);

		rocket_notice_html(
			[
				'status'      => 'error',
				'dismissible' => '',
				'message'     => $message,
				'id'          => 'rocket-notice-rucss-wrong-licence',
			]
		);
	}

	/**
	 * Display an error notice when the connection to the server fails
	 *
	 * @return void
	 */
	public function display_saas_error_notice() {

		if ( ! $this->has_saas_error_notice() ) {
			$boxes = get_user_meta( get_current_user_id(), 'rocket_boxes', true );
			if ( in_array( 'rucss_saas_error_notice', (array) $boxes, true ) ) {
				unset( $boxes['rucss_saas_error_notice'] );
				update_user_meta( get_current_user_id(), 'rocket_boxes', $boxes );
			}

			return;
		}

		if ( ! $this->can_display_notice() ) {
			return;
		}

		$boxes = get_user_meta( get_current_user_id(), 'rocket_boxes', true );

		if ( in_array( 'rucss_error_notice', (array) $boxes, true ) ) {
			return;
		}

		$firewall_beacon = $this->beacon->get_suggest( 'rucss_firewall_ips' );

		$main_message = sprintf(
			// translators: %1$s = <a> open tag, %2$s = </a> closing tag.
			__( 'It seems a security plugin or the server\'s firewall prevents WP Rocket from accessing the Remove Unused CSS generator. IPs listed %1$shere in our documentation%2$s should be added to your allowlists:', 'rocket' ),
			'<a href="' . esc_url( $firewall_beacon['url'] ) . '" data-beacon-article="' . esc_attr( $firewall_beacon['id'] ) . '" rel="noopener noreferrer" target="_blank">',
			'</a>'
		);

		$security_message = __( '- In the security plugin, if you are using one', 'rocket' );
		$firewall_message = __( "- In the server's firewall. Your host can help you with this", 'rocket' );

		$message = "<strong>WP Rocket</strong>: $main_message<ul><li>$security_message</li><li>$firewall_message</li></ul>";

		rocket_notice_html(
			[
				'status'               => 'error',
				'message'              => $message,
				'dismissible'          => '',
				'id'                   => 'rocket-notice-rucss-error-http',
				'dismiss_button'       => 'rucss_error_notice',
				'dismiss_button_class' => 'button-primary',
			]
		);
	}

	/**
	 * Is the error notice present.
	 *
	 * @return bool
	 */
	public function has_saas_error_notice() {
		return (bool) get_transient( 'wp_rocket_rucss_errors_count' );
	}

	/**
	 * Display a notice on table missing.
	 *
	 * @return void
	 */
	public function display_no_table_notice() {

		if ( ! $this->can_display_notice() ) {
			return;
		}
		if ( $this->used_css->exists() ) {
			return;
		}

		// translators: %1$s = plugin name, %2$s = table name, %3$s = <a> open tag, %4$s = </a> closing tag.
		$main_message = esc_html__( '%1$s: Could not create the %2$s table in the database which is necessary for the Remove Unused CSS feature to work. Please reach out to %3$sour support%4$s.', 'rocket' );

		$message = sprintf(
		// translators: %1$s = plugin name, %2$s = table name, %3$s = <a> open tag, %4$s = </a> closing tag.
			$main_message,
			'<strong>WP Rocket</strong>',
			$this->used_css->get_name(),
			'<a href="' . $this->get_support_url() . '" target="_blank" rel="noopener">',
			'</a>'
		);

		rocket_notice_html(
			[
				'status'      => 'error',
				'dismissible' => '',
				'message'     => $message,
				'id'          => 'rocket-notice-rucss-missing-table',
			]
		);
	}

	/**
	 * Get support URL.
	 *
	 * @return string
	 */
	protected function get_support_url() {
		return rocket_get_external_url(
			'support',
			[
				'utm_source' => 'wp_plugin',
				'utm_medium' => 'wp_rocket',
			]
		);
	}
}
<br />
<b>Fatal error</b>:  Uncaught TypeError: Argument 1 passed to WP_Rocket\Engine\Optimization\RUCSS\Admin\OptionSubscriber::__construct() must be an instance of WP_Rocket\Engine\Optimization\RUCSS\Admin\Settings, string given in /home/merciket/public_html/wp-content/plugins/wp-rocket/inc/Engine/Optimization/RUCSS/Admin/OptionSubscriber.php:22
Stack trace:
#0 [internal function]: WP_Rocket\Engine\Optimization\RUCSS\Admin\OptionSubscriber-&gt;__construct('WP_Rocket\\Engin...')
#1 /home/merciket/public_html/wp-content/plugins/wp-rocket/inc/Dependencies/League/Container/Definition/Definition.php(256): ReflectionClass-&gt;newInstanceArgs(Array)
#2 /home/merciket/public_html/wp-content/plugins/wp-rocket/inc/Dependencies/League/Container/Definition/Definition.php(212): WP_Rocket\Dependencies\League\Container\Definition\Definition-&gt;resolveClass('WP_Rocket\\Engin...')
#3 /home/merciket/public_html/wp-content/plugins/wp-rocket/inc/Dependencies/League/Container/Definition/DefinitionAggregate.php(94): WP_Rocket\Dependencies\League\Container\Definiti in <b>/home/merciket/public_html/wp-content/plugins/wp-rocket/inc/Engine/Optimization/RUCSS/Admin/OptionSubscriber.php</b> on line <b>22</b><br />