Steps to reproduce the issue

We are missing the section of tool bars between the top menus and the list of articles, article editor, etc. So I can scroll to find an article (can't search for it) and can edit it, but then am missing the buttons to Save, Save & Close, etc.

Photo attached with missing area circled in red.

Expected result

Actual result

System information (as much as possible)

This problem occurs on both PCs and Macs in our organization. I believe we are using Joomla 3.5

Additional comments

I'm just a basic user, updating content, and don't have any experience as a developer, so a the most detailed help you are able to provide would be great!