Header logo link no longer goes to home page, href is empty

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This was working fine until recently, I'm not sure when or what has broken it. The following code, used to generate a link to the home page. Now it goes to whatever page you are on, and when I looked at the source the href is empty. I have the same design theme installed on a local installation and it works fine still.

<h1 id="logo" ><a class="ir" href="<?php echo $home?>">Write4English</a></h1>


The footer code still works fine, this goes to root...
<a href="<?php echo DIR_REL?>/"><?php echo SITE?></a>.

AngusHume
 
djrodan replied on at Permalink Reply
I noticed this also, copying and pasting
<?php echo DIR_REL?>/


from the footer fixes it for now, but why the old code broke is still an issue.