phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('1d5c2c6efa11d5617b49cc40acb2d5ff', -1, 1715200906, 1715200906, '12db0e3f', 4, 0, 0)

Line : 189
File : sessions.php