In Layman's terms MySQL in strict mode can not allow query inserts with null values to be entered.
There are several workarounds
1. Replace in my.ini the current sql-mode line with sql-mode="MYSQL40"
2. Start MySQL with the option --sql-mode="MYSQL40"
3. Execute the query SET GLOBAL sql_mode='MYSQL40'
MySQL needs to be restarted before changes in my.ini have an effect. My.ini can be found in the MySQL installation directory or the Windows directory, depending on your configuration.