Error while trying to create a petition

[envieme]

In the last step, when publishing the petition I get this error.

Also, what does this do: drush -y make --no-core --contrib-destination=. drupal-org.make

I am new to drush, drupal and unix itself. I understand it is downloading the required modules for petitions to work and building it. But I do not see the modules downloaded anywhere and infact I had to use drush to download and enable all the required modules with help from the installer module missing error messages.

An AJAX HTTP error occurred.
HTTP Result Code: 500
Debugging information follows.
Path: /?q=system/ajax
StatusText: Service unavailable (with message)
ResponseText: PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'appeal' cannot be null: INSERT INTO {petition} (nid, appeal, personal, target, statistics, thank_you_page, autorespond_from, autorespond_subject, autorespond_message, activity_id) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6, :db_insert_placeholder_7, :db_insert_placeholder_8, :db_insert_placeholder_9); Array
(
[:db_insert_placeholder_0] => 4
[:db_insert_placeholder_1] =>
[:db_insert_placeholder_2] =>
[:db_insert_placeholder_3] =>
[:db_insert_placeholder_4] =>
[:db_insert_placeholder_5] =>
[:db_insert_placeholder_6] =>
[:db_insert_placeholder_7] =>
[:db_insert_placeholder_8] =>
[:db_insert_placeholder_9] =>
)
in petition_insert() (…