To solve this:

1. Close LOVIS EOS
2. Enter the User Data folder and at the top of the file explorer, select the root of the User Data folder, which is LOVISEOS
3. Identify the file with the name of the connected user and delete it. The file is with the extension txt, for example, “006.support.user.txt”
4. Access to LOVIS EOS again and validate that the toolbar is displayed.