You have an error in your SQL syntax

During application update an error message containing "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ..." appears in the log.

Cause
It means your database is outdated and it can't work with the request our application sends to it. It just doesn't understand it.

Solution
You need to update your database.

How to update the database?
Detailed description in the Knowledge base.