phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('2b96f392a2dac5327bf8a2990fd5b41e', -1, 1752759193, 1752759193, 'd849d81e', -2, 0, 0)

Line : 189
File : sessions.php