To avoid any possible problem afterward, we recommend changing the basic settings of the MySQL Server installation. The parameter of maximum allowed packet size must be changed and set to an higher value than the default one.
The MySQL configuration file must be edited (see How to Locate MySQL Configuration File).
Edit file by adding or editing this parameter:
max_allowed_packet = 16M
Save the file and restart MySQL server to make the new setting take effect. Refer to you DB Administrator about the correct procedure for instance shutdown and restart.