To fix, “MySQL Error 1153 – Got a packet bigger than ‘max_allowed_packet’ bytes” on Ubuntu edit your
sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf
Once you have opened the file, increase the
max_allowed_packet to a value that works for your environment. For example, in a local development environment,
100M can work.
Then restart MySQL.
sudo service mysql restart