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 ('819dbeb7b61d2619f7ba67c24af3e625', -1, 1715308312, 1715308312, '12d8e34c', 3, 0, 0)

Line : 189
File : sessions.php