WHAT IS THE ERROR AND FIX IT PLEASE :

create table Customer(custmer_id int primary key, name varchar2 ( 100) , phone_number number unique, address varchar2 (250) );

create table Order_line(agent_id int primary key , address varchar2(200));

create table order_o( order_id int primary key , foreign key (agent_id) references order_line(agent_id), foreign key (customer_id) references customer(customer_id) , day date , quantity number );

create table Payment(payment_id int primary key , foreign key (order_id) references order_o(order_id), foreign key (customer_id) references customer(customer_id) , typeOfPayment varchar2(100));

create table product(product_id int primary key , foreign key (order_id) references order_o(order_id));

create table Wearhouse(Location varchar2 primary key , foreign key (product_id)references product(product_id), quantity number);