Hi, right-click the Panel to launch 'Preferences' then go to the 'applets' tab - look at the 'replica' panel at the bottom - scroll to the far right and then select the furthest menu applet then either drag to the main window or click on the 'up' arrow above the replica panel to remove it - do the same with the next one. Then with what you have left, physically hold down the left-mouse key after selecting and drag to the far left, then close the preferences.
If there are signs of any other misbehaviours then I would back up all data and start afresh, making sure that check for newest Ubuntu is set to Never, which is normally the default since Zorin 9 upwards!