WordPress database error Lock wait timeout exceeded

In the server error log, I got this

2020-10-22 06:24:16.008923 [NOTICE] [146.247.137.104:16528:HTTP2-5#mydomain-name.com-443:lsapi] [STDERR] WordPress database error Lock wait timeout exceeded; try restarting transaction for query UPDATEwp_optionsSEToption_value= '1365131' WHEREoption_name` = ‘wpsupercache_count’ made by shutdown_action_hook, do_action(‘shutdown’), WP_Hook->do_action, WP_Hook->apply_filters, wp_ob_end_flush_all, ob_end_flush, wp_cache_ob_callback, wp_cache_get_ob, update_option
2020-10-22 06:24:23.010075 [NOTICE] [146.247.137.104:16528:HTTP2-7#mydomain-name.com-443:lsapi] [STDERR] WordPress database error Lock wait timeout exceeded; try restarting transaction for query UPDATE wp_options SET option_value = ‘1365131’ WHERE option_name = ‘wpsupercache_count’ made by shutdown_action_hook, do_action(‘shutdown’), WP_Hook->do_action, WP_Hook->apply_filters, wp_ob_end_flush_all, ob_end_flush, wp_cache_ob_callback, wp_cache_get_ob, update_option
2020-10-22 06:24:40.014751 [NOTICE] [146.247.137.104:16528:HTTP2-11#mydomain-name.com-443:lsapi] [STDERR] WordPress database error Lock wait timeout exceeded; try restarting transaction for query UPDATE wp_options SET option_value = ‘1365131’ WHERE option_name = ‘wpsupercache_count’ made by shutdown_action_hook, do_action(‘shutdown’), WP_Hook->do_action, WP_Hook->apply_filters, wp_ob_end_flush_all, ob_end_flush, wp_cache_ob_callback, wp_cache_get_ob, update_option
2020-10-22 06:24:40.014805 [NOTICE] [146.247.137.104:16528:HTTP2-9#mydomain-name.com-443:lsapi] [STDERR] WordPress database error Lock wait timeout exceeded; try restarting transaction for query UPDATE wp_options SET option_value = ‘1365131’ WHERE option_name = ‘wpsupercache_count’ made by shutdown_action_hook, do_action(‘shutdown’), WP_Hook->do_action, WP_Hook->apply_filters, wp_ob_end_flush_all, ob_end_flush, wp_cache_ob_callback, wp_cache_get_ob, update_option`

What is it? And how to fix it, please?
Thanks.