输入字段提交问题，所有字段提交到数据库，除了一个

我3天前开始使用我的网站，我们遇到了一个问题，我无法解决我的生活。我的网站是www.bookling.co，当用户试图编辑他们的个人资料时，有10个字段，企业名称，名称，专业，关于我，电子邮件，网站，facebook, twitter, pinterest和google plus。我有114个注册用户，其中一些关于我的部分将不会插入到数据库中。它每次对我都有效，但对我的一些用户却不是这样。我在多个浏览器和不同的计算机上尝试过它，它总是为我工作，我甚至创建了多个配置文件，仍然工作。我需要帮助弄清楚为什么它对一些人有效，但对另一些人无效。下面是输入字段的代码:

<?php
header('Location: userprofile.php');
define('QUADODO_IN_SYSTEM', true);
require_once('includes/header.php');
include_once('includes/mysqli_connection.php');
$qls->Security->check_auth_page('members.php');


//
$business_name=$_POST['business_name'];
$name=$_POST['name'];
$about_me=$_POST['about_me'];
$specialty=$_POST['specialty'];
$email=$_POST['email'];
$website=$_POST['website'];
$facebook=$_POST['facebook'];
$twitter=$_POST['twitter'];
$pintrest=$_POST['pintrest'];
$googleplus=$_POST['googleplus'];

// Insert data into mysql 
$id=$qls->user_info['id'];
$sql="UPDATE qls3_users SET business_name='$business_name', name='$name', about_me='$about_me', specialty='$specialty', email='$email', website='$website', facebook='$facebook', twitter='$twitter', pintrest='$pintrest', googleplus='$googleplus' WHERE id='$id'";
$result=mysqli_query($db_conx,$sql);
?>
<?php 
// close connection 
mysqli_close('$db_conx');
?>
<!-- Edit Profile Modal -->
                <!-- Button trigger modal -->
                <button class="btn btn-default" data-toggle="modal" data-target="#myModal">Edit Profile</button>
                <?php include_once( 'modals/profile_img.php');?>
                <!--Edit Profile Modal -->
                <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
                    <div class="modal-dialog">
                        <div class="modal-content">
                            <div class="modal-header">
                                <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
                                <h4 class="modal-title" id="myModalLabel">Edit Profile</h4>
                            </div>
                            <div class="modal-body">
                                <form action="edit_profile.php" method="post" enctype="multipart/form-data" name="eprofile" onsubmit="return checkRequired2();">
                                    <input type="text" class="form-control" id="exampleInputEmail1" name="business_name" placeholder="Business Name" value="<?php echo $qls->user_info['business_name'];?>">
                                    <br>
                                    <input type="text" class="form-control" id="exampleInputEmail1" name="name" placeholder="Name" value="<?php echo $qls->user_info['name'];?>">
                                    <br>
                                    <textarea class="form-control" name="about_me" rows="3" maxlength="535" lengthcut="true" placeholder="About Me"><?php echo $qls->user_info['about_me'];?></textarea>
                                    <br>
                                    <input type="text" class="form-control" id="exampleInputEmail" placeholder="My Specialties" name="specialty" value="<?php echo $qls->user_info['specialty'];?>">
                                    <br>
                                    <input type="email" class="form-control" id="exampleInputEmail" placeholder="Email" name="email" value="<?php echo $qls->user_info['email'];?>">
                                    <br>
                                    <input type="text" class="form-control" id="exampleInputEmail" placeholder="Website" name="website" value="<?= $qls->user_info['website'];?>">
                                    <br>
                                    <input type="text" class="form-control" id="exampleInputEmail" name="facebook" placeholder="Facebook Link" value="<?php echo $qls->user_info['facebook'];?>">
                                    <br>
                                    <input type="text" class="form-control" id="exampleInputEmail" name="twitter" placeholder="Twitter Link" value="<?php echo $qls->user_info['twitter'];?>">
                                    <br>
                                    <input type="text" class="form-control" id="exampleInputEmail" name="pintrest" placeholder="Pintrest Link" value="<?php echo $qls->user_info['pintrest'];?>">
                                    <br>
                                    <input type="text" class="form-control" id="exampleInputEmail" name="googleplus" placeholder="Google+ Link" value="<?php echo $qls->user_info['googleplus'];?>">
                                    <br>
                                    <div class="note">*Potential clients will be able to view your profile, make sure to use as much information as possible to gain their interests.</div>
                                    <br>
                                    <br>
                                    <input type="submit" name="submit" class="btn btn-primary" value="submit">
                                    <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
                                </form>
                                <script type="text/javascript" language="javascript" src="/assets/js/charcount.js"></script>
                            </div>
                        </div>
                    </div>
                </div>