There are couple of ways to do it:
First, you can just add an appropriate permission to your user. But you have to know the ID of the administration role on your site. For example, this id is equals 3:
sudo drush sql-query "INSERT INTO users_roles (uid, rid) VALUES (29157, 3);"
The second way, you can just change the password of the main user, I have a hash for 123 password, just run this query and then you will be able to log to your site with '...