Hello Shay, My product information bar is not showing in my online theme editor at all (not like in your screenshot). Therefore there is no option to add the 'product description ' to it?  

Hi Moira, please see attached screenshots re; product descriptions not appearing in online store, however they are showing on the admin side.  Please help.  Thank you   

Please see below screen shots of 1 of my store products, showing admin screen and online screen.  I believe there is possibly some coding that is required.  However, cannot seem to find the correct areas.?  Pls see screenshots below.