希望你们中有人能帮助我。在我的wordpress页面上，当我使用搜索功能但没有结果时，我会收到以下消息：

注意：正在尝试获取/var/www/vhosts/tronicmart中非对象的属性。de/httpdocs/wp-content/themes/oceanwp/inc/helpers。php在线3392

注意：正在尝试获取/var/www/vhosts/tronicmart中非对象的属性。de/httpdocs/wp-content/themes/oceanwp/inc/helpers。php在线3400

注意：正在尝试获取/var/www/vhosts/tronicmart中非对象的属性。de/httpdocs/wp-content/themes/oceanwp/inc/helpers。php在线3406

if ( ! function_exists( \'oceanwp_excerpt\' ) ) {

function oceanwp_excerpt( $length = 30 ) {
    global $post;

    // Check for custom excerpt -->line 3392
    if ( has_excerpt( $post->ID ) ) {
        $output = $post->post_excerpt;
    }

    // No custom excerpt
    else {

        // Check for more tag and return content if it exists -->line 3400
        if ( strpos( $post->post_content, \'<!--more-->\' ) ) {
            $output = apply_filters( \'the_content\', get_the_content() );
        }

        // No more tag defined -->line 3406
        else {
            $output = wp_trim_words( strip_shortcodes( $post->post_content ), $length );
        }

    }

    return $output;

}