It should say at least In the store
The mod currently adds to Who.english.php
//Begin SMF Store
$txt['whoall_store'] = 'In the <a href="' . $scripturl . '?action=store">Store</a>';
//END SMF Store Strings
Double check the Who.*.php in your themes/default/languages folder
Where * is the language being used on the forum could be english-utf8
If you are using custom theme check that custom themes language folder as well.