Redmine

Hello,

I don't know why but with my issue i can't insert date of end and date of start. Before yes, but now it's impossible.

This is the error in log :
"ActiveRecord::StatementInvalid (Mysql::Error: Column 'position' cannot be null: INSERT INTO `issues` (`assigned_to_id`, `autho r_id`, `category_id`, `created_on`, `description`, `done_ratio`, `due_date`, `estimated_hours`, `fixed_version_id`, `is_privat e`, `lft`, `lock_version`, `parent_id`, `position`, `priority_id`, `project_id`, `remaining_hours`, `rgt`, `root_id`, `start_d ate`, `status_id`, `story_points`, `subject`, `tracker_id`, `updated_on`) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)):
app/controllers/issues_controller.rb:148:in `create'"

Please help me :)

Thanks