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 ('4d313e3f0c6d771649d0b9d51a2c5e98', -1, 1713936878, 1713936878, '039368f8', -10, 0, 0)

Line : 187
File : sessions.php