Why is the footer not shown?

You have this in your custom CSS that is causing it to not display

.site-info {display:none;}

Well, thanks Jarret, but its working on all other pages. How come?
The I remove .site-info {display:none;} the WordPress message is shown, but not my footer. On the other pages, the footer is shown in addition to the WordPress message.

Is there content in the foote? Has it been called on the page? Two questions I have to ask first.

Are you working with a child theme? If so, change back to the plain twenty-seventeen theme and see what it looks like. If everything appears correctly, Then gradually make changes to the styles/structure through the child theme.

Or are you only using the dashboard’s appearance over-rides? If so, try appl;ying those one by one again to see where the problem arises.

I hope that helps start a solution for you.

When you switch to any other page, you can see the content of the footer, and no, I’m not using a child theme, just the additional CSS in customizer.

Are you referring to this content?

<center>Die Altarnative &nbsp;&nbsp;|&nbsp;&nbsp; Frank&nbsp;Spade &nbsp; | &nbsp; 14476&nbsp;Potsdam, Tschudistra?e&nbsp;8&nbsp;B &nbsp; | &nbsp; <a href="tel:+491638648937">0163&nbsp;8648937</a><br>&nbsp;</center>

If so, that isn’t even set in the footer area of the site. Did you modify any of the source code of the theme such as page.php to get that footer content in there?

I think Jarret will sort this out with you.

There is also an error message at the bottom of the page when I used ctrl+u

<!--Weglot error API : You have reached your words limit, you need to upgrade. (NMC)-->
<!-- Dynamic page generated in 1.187 seconds. -->
<!-- Cached page generated by WP-Super-Cache on 2019-09-27 11:13:30 -->

<!-- Compression = gzip -->

(I just don’t like seeing error messages.)

As Jarret pointed out, your information line is outside of the #page div which would hide it, I think, but others would know more than I.

 </div><!-- #page -->
<center>Die Altarnative   |   Frank&nbsp;Spade   |   14476&nbsp;Potsdam, Tschudistra?e&nbsp;8&nbsp;B   |   <a href="tel:+491638648937">0163&nbsp;8648937</a><br/> </center><script type='text/javascript'>

I hope that helps.

Thanks. I did not see that error, but remove Weglot anyway.

Thanks Jarret, yes, that is it.

I used the plugin ?Insert Headers and Footers? to place it there.

Is there a better solution, that fixes this problem as well?

Okay, I removed the plugin ?Insert Headers and Footers? and added a footer widget (Footer 2).

I now like this widget to display in one line centered in the footer. How about that?

You need to define a full width div to put it in with all of the other css you want to apply to it. The normal widget areas are not full witth.

Now I see. Thanks Stilman Davis.