I am creating a table and have numerous foreign keys. However, the very last foreign key in the code gives me an error code. If I remove this line the code works. Can anyone explain what is wrong?

This is the last two lines of the code:

    FOREIGN KEY (start_address_id) REFERENCES Addresses(address_id),
    FOREIGN KEY (end_address_id) REFERENCES Addresses(address_id)
    );

if I remove the Foreign key in the last line, for end_address_id, the code works. I am a total novice at MYSQL so hopefully it is a simple solution I can understand!