No Button to Add New Plugins

The add new button that allows me to add new plugins is gone.

There is also a strange code (I am by no means a programmer and barely understand word press at all) that is showing up on my website under the main menu bar at the top of the page.

I’m not sure if that has anything to do with the new plug in button. I did check and I still have administrator permissions.

Here’s the link to my site
https://www.gqlaw.com