Please add this given script in your wp-admin -> wplms -> footer -> google anaylitics script :
<script>
jQuery( 'body' ).delegate( '.ajax-certificate:not(.certificate_image)','click',function(event){
if(jQuery(window).width()<=900 ){
event.preventDefault();
event.stopPropagation();
$.magnificPopup.open({
items: {
src: '<div class="white-popup">Please access with Desktop for better quality certificates</div>',
type: 'inline'
}
});
}
});
</script>
