No Admin Panel

Are you signed into your correct Facebook account? Every business page is required to be administrated by people with personal accounts. Double check to make sure you are logged in with the account which has admin access to your business page.

Make sure you're signed into the correct account associated with the page.  Then go to your page.

You should see the following bar I provided in the screenshot.

I logged into my personal account and then switched to the business page.  I do have that bar and I went to Settings, Page Roles and it shows my personal profile picture and my personal name as the admin.

Ok, so what's the issue then?  Under your settings you have all of your admin settings.

I can add posts.  I am trying to edit the About page.

Then go to your about page and hover any of the items and you will see an "Edit" button appear.

See screenshot.
 

I  am trying to add a picture to the About page.

And text too...

Well you add text about the page in the description field there.

I don't think you can put a picture on the about page, you'll need to upload that in your photos tab.

Thanks, I see now how to add text.  Someone set this up for me and put a map of our location on the About page in Overview.  I would like to add a picture of our building.

Thanks!