The problem is that you have two strings that aren’t actually being appended together.
Try replacing
return $count. '<span class="vwbx">Views</span>''<span class="vwbx">views</span>';
With
return $count. '<span class="vwbx">Views</span>'.'<span class="vwbx">views</span>';
(note the added period in the centre).
Or instead, remove the two quotation marks from the centre:
return $count. '<span class="vwbx">Views</span><span class="vwbx">views</span>';
That should work 😀
EDIT
In response to your comment… I think you’ll be wanting to replace it with:
return '<span class="vwbx">Views</span><span class="bxarw"></span><span class="CntBx">'.$count.'</span>';