How to show Conditional Statement In CMB2 for input text?

this will be like this

<?php  $project_counter = get_post_meta(get_the_ID(), 'projects', true);  ?>
            <?php  if(!empty($project_counter)) {?>
             <?php echo $project_counter;   ?>
                                <?php }
  else  {echo __("<h2> Input value from theme option panel </h2>", "casanova"); }  ?>