Listeleme php dosyanız;

<div class="tab-pane" id="Account">
    <div class="card">
        <div class="table-responsive">
            <table class="table table-hover table-custom spacing5">
                <thead>
                    <tr>
                        <th>Karar No.</th>
                        <th>Toplantı Kararı</th>
                        <th>Sorumlu Kişiler / Bölümler</th>
                        <th>Durum</th>
                        <th>Bitiş Tarihi</th>
                        <th>Seçenekler</th>
                    </tr>
                </thead>
                <tbody>
 
                    <?php
                    
                    foreach ($kararsor as $kararcek){
 
 
                        ?>
 
 
                        <tr>
                            <td>
                                <span><?php echo $kararcek['karar_no'] ?></span>
                            </td>
                            <td>
                                <div class="d-flex align-items-center">
                                    <p class="mb-0"><?php echo substr($kararcek['karar_karar'], 0,20) ?><b>...</b></p>
                                </div>
                            </td>
                            <td><?php echo $kararcek['karar_sorumlu'] ?></td>
                            <td>
                                <p class="mb-0">
                                    <?php
                                    if ($kararcek['karar_durum']=="acik") echo "Açık";
                                    elseif($kararcek['karar_durum']=="kapali") echo "Kapalı";
                                    elseif($kararcek['karar_durum']=="surekli") echo "Sürekli";
                                    ?>
                                </p>
                            </td>
                            <td><span class="badge badge-danger ml-0 mr-0"><?php echo $kararcek['karar_bitis'] ?></span></td>
                            <td>
                                <a href="javascript:void(0) "  data-bs-toggle="modal" data-bs-target="#kararGoruntule_<?php echo $kararcek['karar_id'];"  class="btn btn-sm btn-default"><i class="icon-eye text-success"></i></a>
                                <a href="#kararSil_<?php echo $kararcek['karar_id']; ?>" class="btn btn-sm btn-default" data-bs-toggle="modal"><i class="icon-trash text-danger"></i></a>
 
                            </td>
                            <?php include('kararGoruntule.php'); ?>
                        </tr>
 
                    <?php } ?>
 
                </tbody>
            </table>
        </div>
    </div>
</div>

Bununla değiştirin. a href değil "data-bs-target" olarak hedef gösterin.

<a href="javascript:void(0) " şeklinde olması gerekiyor.