please add this given script in your wp-admin -> wplms -> footer -> google anaylitics script :
<script>
jQuery(document).ready(function(){
jQuery('.single-course a.course_button').addClass('disabled');
jQuery('.single-course a.course_button').attr('href','#');
jQuery('.single-course .pricing_course .drop').click(function(){
jQuery('.single-course a.course_button').removeClass('disabled');
});
});
</script>