postgresql inner join and left join

I have the following database structure, with postgres 9.5:

create table users (
  id character varying(255), 
  email character varying(127)
);

create table org_users(
  id character varying(255), 
  user_id character varying(255), -- foreign key to users.id
  manager_org_user_id character varying(255) -- refers to org_users.id; same table referential dependency
);

insert into users (id, email) values ('111', '[email protected]');
insert into users (id, email) values ('222', '[email protected]');
insert into users (id, email) values ('333', '[email protected]');

insert into org_users (id, user_id, manager_org_user_id) values ('o1', '111', 'o3');
insert into org_users (id, user_id, manager_org_user_id) values ('o2', '222', 'o3');
insert into org_users (id, user_id, manager_org_user_id) values ('o3', '333', null);

I have three users in my table. [email protected], [email protected] are two normal users. [email protected] is their manager. Now I want to display the following structure:

org_user_id, employee_user_id, employee_email, manager_org_user_id, manager_user_id, manager_email

I tried with the following sql query but it fails to work for me with syntax error near JOIN. Any help ?

select ou.id as employee_org_user_id,
    us.id as employee_user_id, 
    us.email as employee_email, 
    ou.manager_org_user_id as manager_org_user_id,
    u2.email as manager_email
from org_users ou 
    JOIN users us ON ou.user_id::text = us.id::text,
    LEFT JOIN org_users ou1 ON ou1.id::text = ou.manager_org_user_id::text
    LEFT JOIN users us2 ON ou1.user_id::text = us2.id::text;