Error with cron job gfw_daily_event

Hi, I am receiving the below error for each URL that I am monitoring. Please help. Thanks

Jan 14, 13:35:59

Warning: Error while sending QUERY packet. PID=1907853 in /wp-includes/wp-db.php on line 1924

Stack Trace
1.
mysqli_query(mysqli, ‘SELECT post_name FROM …’)
/wp-includes/wp-db.php:1924
2.
wpdb->_do_query(‘SELECT post_name FROM …’)
/wp-includes/wp-db.php:1813
3.
wpdb->query(‘SELECT post_name FROM …’)
/wp-includes/wp-db.php:2380
4.
wpdb->get_var(‘SELECT post_name FROM …’)
/wp-includes/post.php:3976
5.
wp_unique_post_slug(”, 0, ‘publish’, ‘gfw_report’, 0)
/wp-includes/post.php:3485
6.
wp_insert_post(Array(19))
/wp-content/plugins/gtmetrix-for-wordpress/gtmetrix-for-wordpress.php:781
7.
GTmetrix_For_WordPress->save_report(Array(31), 43465)
/wp-content/plugins/gtmetrix-for-wordpress/gtmetrix-for-wordpress.php:165
8.
GTmetrix_For_WordPress->scheduled_events(‘daily’)
/wp-includes/class-wp-hook.php:286
9.
WP_Hook->apply_filters(”, Array(1))
/wp-includes/class-wp-hook.php:310
10.
WP_Hook->do_action(Array(1))
/wp-includes/plugin.php:515
11.
do_action_ref_array(‘gfw_daily_event’, Array(1))
/wp-cron.php:126
Context
URL /wp-cron.php?doing_wp_cron=xxxxxxxxxx.xxxxxxxxxxxxxxxxxxxxxx
HTTP Method POST
HTTP Status 200
isSSL Yes
Current Filter gfw_daily_event
Execution Time 2154.360 s
Memory Usage 27.58 MiB
PHP SAPI litespeed