Hi.
To remove the error warning.
Edit the file : templates/ja_moviemax/html/mod_articles_category/slide.php
Look for :
$('html[dir="ltr"] .article-slide').slick({
Add this code above
if ($('html[dir="ltr"] .article-slide').length)
Look for :
$('html[dir="rtl"] .article-slide').slick({
Add this code above
if ($('html[dir="rtl"] .article-slide').length)