Thanks for using Bitnami. It looks like your PHP-FPM service is running out of resources, probably for a hight traffic on your site.
[05-Nov-2019 21:06:02] WARNING: [pool wordpress] server reached pm.max_children setting (5), consider raising it
Can you try increasing the value of the
pm.max_children parameter in the
/opt/bitnami/php/etc/bitnami/common.conf file and restart the services?
sudo /opt/bitnami/ctlscript.sh restart
Please note this value depends on your server size and that increasing it too much for a small server may cause performance issues. We recommend you to increase the instance type so the new values are balanced with the new instance type. Our init process will take care of detecting your new instance type and will adjust the PHP-FPM parameters according to it.
You can get more information about how to resize your server in the guide below
Hope it helps,