When using the limit keyword in the short code and when only one page is available the word previous still shows in the paging line.
CataBlog.class.php located in
private function frontend_build_navigation:
if ($paged < 2) to
if ($paged < 2 && $total > 1)
if ($paged == $total) to
if ($paged == $total && $total > 1)
This will prevent paging from showing if only one page is available