The problem is that you have the id links in different places. For footnote 112 you have
<a id="ref_n112"></a><a href="#ref_112"><sup>112</sup></a>
for footnote 113 you have
<span class="MsoFootnoteReference"><a href="#ref_113">113</a></span><a id="ref_n113"></a>
The difference between the sup tag and the span is unimportant (except from a styling point of view - there's no guarantee that these footnotes will look the same). The important difference is that the link anchor is after the footnote. Personally, I'd go for a combined link/href like this:
<a id="ref_n112" href="#ref_112"><sup>112</sup></a>
but there's no real need to change all of them - just the ones where you have the id link in the wrong place.