Error log PHP Warning

Hi
I get these two errors in the logs:
PHP Warning: fsockopen(): unable to connect to node3.quic.cloud:443 (No route to host) in /home/wp/public_html/wp-content/plugins/litespeed-cache/src/utility.cls.php on line 182
My CDN settings is OFF

[14-Mar-2022 15:29:23 UTC] WordPress errore sul database Illegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8mb4_unicode_520_ci,IMPLICIT) for operation '=' per la query SELECT a.id, a.url FROMwp_litespeed_crawler_blacklista LEFT JOINwp_litespeed_crawler` b ON b.url=a.url WHERE b.id IN ( 202 ) fatta da do_action_ref_array(‘litespeed_task_crawler’), WP_Hook->do_action, WP_Hook->apply_filters, LiteSpeed\Crawler::start, LiteSpeed\Crawler->_crawl_data, LiteSpeed\Crawler->_engine_start, LiteSpeed\Crawler->_do_running, LiteSpeed\Crawler_Map->save_map_status
[14-Mar-2022 15:29:23 UTC] WordPress errore sul database Illegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8mb4_unicode_520_ci,IMPLICIT) for operation ‘=’ per la query UPDATE wp_litespeed_crawler_blacklist a LEFT JOIN wp_litespeed_crawler b ON b.url = a.url SET a.reason = CONCAT( SUBSTRING_INDEX( a.reason, ‘,’, 0 ), ‘0,’, SUBSTRING_INDEX( a.reason, ‘,’, -3 ) ) WHERE b.id IN (202) fatta da do_action_ref_array(‘litespeed_task_crawler’), WP_Hook->do_action, WP_Hook->apply_filters, LiteSpeed\Crawler::start, LiteSpeed\Crawler->_crawl_data, LiteSpeed\Crawler->_engine_start, LiteSpeed\Crawler->_do_running, LiteSpeed\Crawler_Map->save_map_status

How can i solve?