With mysql 5.7, date value like 0000-00-00 00:00:00 is not allowed.
If you want to allow it, you have to update your my.cnf like:
sudo nano /etc/mysql/my.cnf
find
[mysqld]
Add after:
sql_mode="NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
Restart mysql service:
sudo service mysql restart
Done!