Advanced custom fields not showing repeater

Hello so i have had problems showing ACF fields because of an custom plugin.
I did then find out that i can instead write:

<?php $outputtext= get_field('text'); ?>
<?php echo $outputtext; ?>

instead of

<?php get_field('text'); ?>

because this didn’t work when plugin was activated.

So i have been searching for an answer for a while now and been testing the same way i did get fields to also show an repeater to. No success…

And yes i have been testing regular code wich is

    <?php
    // check if the repeater field has rows of data
    if( have_rows('topp_yrken_referenser') ):
        // loop through the rows of data
        while ( have_rows('topp_yrken_referenser') ) : the_row(); { ?>

            <div class="col-xs-12 col-sm-4">
               <blockquote>
                    <?php // display a sub field value
                    the_sub_field('topp_yrke_referens');
                    ?>
               </blockquote>
            </div>


       <?php } endwhile;
    else :
        // no rows found
    endif;
    ?>

This is how it worked before the custom plugin and stopped to work

1. How do i make something like this work like i made work with this instead?

2. Is there an name for this $this= get_field(‘text’); ?