Output not as expected

When I execute the search form for an attachment_category,
1) the output shows up kind of mla-caption for the first image but not for further.
2) The caption shows up cross the image, not at the end of the image.
3) The last point of interest is, that I don’t use the mla_caption for the output.

I am running a theme newsphere pro from afthemes.

Code
<br><form id=”mla-text-form1″ action=”.” method=”post” class=”row”>
[mla_term_list taxonomy=attachment_category mla_output=dropdown mla_option_value=”{+slug+}” show_count=true pad_counts=false ]
<input id=”text-form-submit” name=”text_form_submit” type=”submit” value=”Suche nach Kategorien, eingeben und Button bestätigen”>
</form>
[mla_gallery columns=1 size=full attachment_category=”{+template:({+request:tax_input.attachment_category+}|no-term-selected)+}”]

Cheers

The page I need help with: [log in to see the link]