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 ('61a108b5f9776da2f5df136caec8327f', -1, 1715194961, 1715194961, '12756f01', 2, 0, 0)

Line : 189
File : sessions.php