[Resolved] infinite scroll error

below codes is my mu-plugins php code

add_action( 'wp_enqueue_scripts', 'child_enqueue_styles', 15 );

/*
 * 워드프레스 사용자이름(Username)에 한글 등 비라틴어 문자 허용하기
 * Source: http://wordpress.stackexchange.com/questions/7328/allowing-non-latin-characters-in-registration
 * https://www.thewordcracker.com/intermediate/%EC%9B%8C%EB%93%9C%ED%94%84%EB%A0%88%EC%8A%A4-%ED%9A%8C%EC%9B%90-%EA%B0%80%EC%9E%85-%EC%8B%9C-%EC%82%AC%EC%9A%A9%EC%9E%90%EB%AA%85%EC%97%90-%ED%95%9C%EA%B8%80-%ED%97%88%EC%9A%A9%ED%95%98%EA%B8%B0/
 */
add_filter('sanitize_user', 'non_strict_login', 10, 3);

function non_strict_login( $username, $raw_username, $strict ) {

if( !$strict )
return $username;

return sanitize_user(stripslashes($raw_username), false);
}

And below is my custom css codes

<?php
/**
 * Plugin Name: 퓨리피아 
 * Description: 퓨리피아 사용자 정의 
 */

// 스타일 정의 
add_action( 'wp_head', 'last_head_style', 99 );
function last_head_style() { ?>
<style>
 
 
 @font-face {
 font-family: '나눔바른고딕';
 font-style: normal;
 font-weight: normal;
 font-display: swap;
 src: local('나눔바른고딕'),local('NanumBarunGothic'),local('나눔바른고딕OTF'),local('NanumBarunGothicOTF'),local('애플 SD 산돌고딕 Neo'),local('Apple SD Gothic Neo'),local('Noto Sans'),local('Noto+Sans'),local('notokr-demilight'),local('나눔고딕'),local('NanumGothic'),local('맑은 고딕'),local('Malgun Gothic');
 src: url('https://happist.com/Font/nanumbarungothicregular.eot'); /*For IE6~8*/
 src: local(☺),
     url('https://happist.com/Font/nanumbarungothicregular.eot?#iefix') format('embedded-opentype'), 
     url('https://happist.com/font/nanumbarungothicregular.woff2') format('woff2'), 
     url('https://happist.com/font/nanumbarungothicregular.woff') format('woff'), 
     url('https://happist.com/font/nanumbarungothicregular.ttf') format('truetype'),
     url('https://happist.com/Font/notokr-demilight.svg') format('svg');
 }
html, body, div, span, applet, object, iframe, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video 
 {
    font-family: '애플 SD 산돌고딕 Neo','Apple SD Gothic Neo','Helvetica Neue','Helvetica','나눔바른고딕','NanumBarunGothic','나눔바른고딕OTF','NanumBarunGothicOTF','Noto Sans','Noto+Sans','notokr-demilight','나눔고딕','NanumGothic','맑은 고딕','Malgun Gothic','sans-serif';

  vertical-align: baseline;
 }

 h1, h2, h3, h4, h5, h6
  {
    font-family: '애플 SD 산돌고딕 Neo','Apple SD Gothic Neo','Helvetica Neue','Helvetica','나눔바른고딕','NanumBarunGothic','나눔바른고딕OTF','NanumBarunGothicOTF','Noto Sans','Noto+Sans','notokr-demilight','나눔고딕','NanumGothic','맑은 고딕','Malgun Gothic','sans-serif'!important;

  }

/**
 * 텍스트 넓이를 매우 좁게  - 이미지까지 좁아짐
 */

.entry-content>*:not(img) {
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

/**
 * 이미지 아래 캡션 문구의 폰트 사이즈 조정 등 
 */
.wp-block-image figcaption {
     text-align: center;
     font-style: italic;
     font-size: 12px;
/*     font-weight: bold; */
}

/**
 * Heading에 언더라인 표시 
 * https://generatepress.com/forums/topic/underline-headers-h1-h2/
 */

.single .entry-content h2{
    content: "";
    border-bottom: .18em solid #ffd100;
    line-height: 1.3em;
    bottom: 0.8em;
}

.single .entry-content h3,
.single .entry-content h4,
.single .entry-content h5{
  text-decoration: underline;
  text-decoration-color: #ffd100;
}

</style>
<?php
}

Thanks

Hi,

I’m using CAOS plugin for Google tag manager. So I deactive this plugin deactive
But the problems are not solved.

What can i do?