Update loading firewall rules service

install/upgrade/versions/1.4.13.sh

@@ -35,4 +35,11 @@ if [ "$PHPMYADMIN_KEY" != "" ]; then
     echo "[ * ] Refressh hestia-sso for PMA..."
     $BIN/v-delete-sys-pma-sso 
     $BIN/v-add-sys-pma-sso 
-fi
+fi
+
+# Loading firewall rules Systemd unit needs update. #2100
+if [ "$FIREWALL_SYSTEM" = "iptables" ]; then
+    echo "[ * ] Update loading firewall rules service..."
+    $BIN/v-delete-sys-firewall
+    $BIN/v-add-sys-firewall
+fi