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 ('94847e29f9b41ff4bd2a3e5eeea77e5f', -1, 1715309017, 1715309017, '12dc89a4', -2, 0, 0)

Line : 189
File : sessions.php