I don’t know what database are you using but in PostgreSQL if column and table names are not quoted they are not case sensitive. So if you created your schema this way you should only use lowercase when refering to them.
I did the same thing as you suggested. Now, I don’t see any exception, but the value of GroupzDescription is not inserted into the table. Default value “NULL” gets inserted. When I checked the logs I see this warning
public function getGroupzDescription()
{
return $this->groupzdescription;
}
public function setGroupzDescription($groupzdescription)
{
$this->groupzdescription = $groupzdescription;
}