MySQL查询停止在实时服务器上工作（在localhost上工作）

I've been working on a blog website on localhost. I'm finally ready to move it over to a live server, but many of my queries stopped working! Below is one example of a query that worked, but no longer is working properly. Is there something I'm missing? Thanks in advance :)

public function search($query, $start, $limit)
{
    $stmt = $this->pdo->prepare("SELECT * FROM `articles` WHERE `status` = 1 AND LOWER(`title`) LIKE LOWER(:query) ORDER BY `id` DESC LIMIT :start, :limit");
    $stmt->bindParam(":query", $query, PDO::PARAM_STR);
    $stmt->bindParam(":start", $start, PDO::PARAM_INT);
    $stmt->bindParam(":limit", $limit, PDO::PARAM_INT);
    $stmt->execute();
    $articles = $stmt->fetchAll(PDO::FETCH_OBJ);
    $count = $stmt->rowCount();

    if($count > 0)
    {
        foreach($articles as $article)
        {
            $date = date('F jS, Y', strtotime($article->published));
            echo '<div class="article">
            <h2>'.$article->title.'</h2>
            <h4>'.$article->subtitle.', <span>'.$date.'</span></h4>
            <div class="imageWrapper">
                <img src="'.BASE_URL.$article->banner.'">
                <div class="articleHover">
                    <p>'.$this->shorten(strip_tags($article->content), 300).'...</p>
                </div>              
            </div>
            <div id="mobileDescription"><p>'.$this->shorten(strip_tags($article->content), 300).'...</p></div>
            <a href="article/'.$article->link.'">Read Article</a>
        </div>';
        }
    }
    else
    {
        echo "No Search Results...";
    }

}

No errors are thrown, just seems to return a count of 0 rows (Tested by echoing $count). There is data in the table and everything is set up correctly. If you view the page at https://nerbgamez.ca/blog you can see the articles displaying properly on the home page. It seems to only be an issue with the search. Below I'll show the ajax function used to call this query, maybe this will help.

Ajax function

index = 0;
app = 2;

...

$.ajax({
        url: 'https://nerbgamez.ca/blog/inc/ajaxFunctions.php',
        type: 'POST',
        data: {start:index, limit:app, index:3, query:$('#query').val()},
        success: function (res) {
            $('#searchResults').html(res);                  
        }
    });

ajaxFunctions.php

if($index == 3)
{
    $start = $_POST['start'];
    $limit = $_POST['limit'];
    $query = '%'.$_POST['query'].'%';

    $getFromA->search($query, $start, $limit);
}