HTML in Single post meta moves right sidebar

Hi. My website is drbellhealth.com For my reviews, I would like to add this to the single post meta or have it show up right before the post content. When I put it in post meta, it pushes the right sidebar to the bottom of the page.

<strong>Availability:</strong> <a href="https://us.fullscript.com/welcome/drbell/store-start">In Stock</a></br>
<i class="fa fa-shopping-cart" style="font-size:24px;color:green"></i>: <span class="rte" id="live_counter"></span>
              </div>
              <script>
                document.addEventListener('DOMContentLoaded', function() {
                  function updateRandomNumber() {
                    const randomNumber = Math.floor(Math.random() * 6) + 15;
                    document.getElementById("live_counter").innerHTML = <code>${randomNumber} buyers are live on this product</code>
                  }
                  updateRandomNumber();
                  setInterval(updateRandomNumber, 10000);
                });
              </script>