Here is a screen shot of how it looked before the update.

Hi It may be that after the update you have started a new, empty profile. There are many similar cases where a glitch during update fails to continue using the old profile or does not transfer your content to the new profile. Read this about profiles - https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data

First check whether you have multiple Profiles and are using an empty one. Assuming you are using a Windows OS:

   Press Windows key +R
   Type %appdata% and press enter. 

In the 'Roaming' folder you will see a 'Thunderbird' folder. In Thunderbird folder find Profiles folder. Please open that folder and either list all the profile folders you see or add a screen shot to your reply. (Add images is below the Post a Reply box).

Here is the screen shot of the requested file.

That file indicates two folders and the one most likely begins with ijim. To activate a folder, start TB, click help>more troubleshooting information, scroll down to Profiles and click about:profiles. This opens a window where you can click 'create profile'. That opens a window where you can browse and select the desired profile folder and give a name so you'll remember it later. Continue to TB and it should work.

Thank you both very much!