I have a Wordpress site and I've noticed some unusual activity in the PHP logs. My logs are below. Any advice or feedback on how to prevent this from happening would be greatly appreciated as I am quite concerned about it and I have seen a lot of these over the past few days in the logs. [27-Dec-2023 09:44:03 UTC] PHP Warning: chmod(): No such file or directory in C:\Websites\mysite\www\wp-admin\includes\class-wp-filesystem-direct.php on line 173 [27-Dec-2023 13:07:11 UTC] WordPress database error Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (utf8mb4_unicode_520_ci,COERCIBLE) for operation 'like' for query SELECT SQL_CALC_FOUND_ROWS wp_posts.ID FROM wp_posts WHERE 1=1 AND (((wp_posts.post_title LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%') OR (wp_posts.post_excerpt LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%') OR (wp_posts.post_content LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%'))) AND (wp_posts.post_password = '') AND ((wp_posts.post_type = 'post' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'page' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'attachment' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'product' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'faq' AND (wp_posts.post_status = 'publish'))) ORDER BY (CASE WHEN wp_posts.post_title LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%' THEN 2 ELSE 6 END), wp_posts.post_date DESC LIMIT 0, 10 made by require('wp-blog-header.php'), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts [27-Dec-2023 13:07:18 UTC] WordPress database error Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (utf8mb4_unicode_520_ci,COERCIBLE) for operation 'like' for query SELECT SQL_CALC_FOUND_ROWS wp_posts.ID FROM wp_posts WHERE 1=1 AND (((wp_posts.post_title LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%') OR (wp_posts.post_excerpt LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%') OR (wp_posts.post_content LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%'))) AND (wp_posts.post_password = '') AND ((wp_posts.post_type = 'post' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'page' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'attachment' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'product' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'faq' AND (wp_posts.post_status = 'publish'))) ORDER BY wp_posts.post_title DESC LIMIT 0, 1 made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/plugins/brizy/public/views/templates/brizy-blank-template.php'), do_action('brizy_template_content'), WP_Hook->do_action, WP_Hook->apply_filters, Brizy_Admin_Templates->showTemplateContent, Brizy_Admin_Templates->getTemplateContent, apply_filters('brizy_content'), WP_Hook->apply_filters, Brizy_Editor->brizy_content, Brizy_Content_MainProcessor->process, Brizy_Content_DynamicContentProcessor->process, BrizyPlaceholders\Replacer->replaceWithExtractedData, BrizyPro_Content_Placeholders_PostLoop->getValue, BrizyPro_Content_Placeholders_AbstractPostLoop->getPosts, BrizyPro_Content_Placeholders_AbstractPostLoop::createWpLoopQuery, BrizyPro_Content_Placeholders_AbstractPostLoop::getWpQueryParams, BrizyPro_Content_Placeholders_AbstractPostLoop::getOffsetPostIds, WP_Query->__construct, WP_Query->query, WP_Query->get_posts [27-Dec-2023 13:07:18 UTC] WordPress database error Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (utf8mb4_unicode_520_ci,COERCIBLE) for operation 'like' for query SELECT SQL_CALC_FOUND_ROWS wp_posts.ID FROM wp_posts WHERE 1=1 AND (((wp_posts.post_title LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%') OR (wp_posts.post_excerpt LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%') OR (wp_posts.post_content LIKE '%高通過率的GMAT 下載 - Admission Tests GMAT 真題材料：Graduate Management Admission Test最新發布 ? ➠ www.newdumpspdf.com ?上的免費下載▛ GMAT ▟頁面立即打開GMAT考試資訊%'))) AND (wp_posts.post_password = '') AND ((wp_posts.post_type = 'post' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'page' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'attachment' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'product' AND (wp_posts.post_status = 'publish')) OR (wp_posts.post_type = 'faq' AND (wp_posts.post_status = 'publish'))) ORDER BY wp_posts.post_title DESC LIMIT 0, 3 made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/plugins/brizy/public/views/templates/brizy-blank-template.php'), do_action('brizy_template_content'), WP_Hook->do_action, WP_Hook->apply_filters, Brizy_Admin_Templates->showTemplateContent, Brizy_Admin_Templates->getTemplateContent, apply_filters('brizy_content'), WP_Hook->apply_filters, Brizy_Editor->brizy_content, Brizy_Content_MainProcessor->process, Brizy_Content_DynamicContentProcessor->process, BrizyPlaceholders\Replacer->replaceWithExtractedData, BrizyPro_Content_Placeholders_PostLoop->getValue, BrizyPro_Content_Placeholders_AbstractPostLoop->getPosts, BrizyPro_Content_Placeholders_AbstractPostLoop::createWpLoopQuery, WP_Query->__construct, WP_Query->query, WP_Query->get_posts [27-Dec-2023 14:56:53 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at C:\Websites\mysite\www\wp-includes\class-wp-styles.php:214) in C:\Websites\mysite\www\wp-content\themes\custom_downloads\functions\discord\includes\login.php on line 31