ui: fixed start/stopping interception by node

Author: gustavo-iniguez-goya

ui/opensnitch/dialogs/stats.py

@@ -2241,8 +2241,7 @@ def _cb_start_clicked(self):
         self._notifications_sent[nid] = noti
 
     def _cb_node_start_clicked(self):
-        nIdx = self.comboNetstatNodes.currentIndex()
-        addr = self.comboNetstatNodes.itemData(nIdx)
+        addr = self.TABLES[self.TAB_NODES]['label'].text()
         if addr == "":
             return
         if self.nodeStartButton.isChecked():