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 ('c2b08b60b710e84e2c8fa975731d171a', -1, 1754627114, 1754627114, 'd849d8c0', 3, 0, 0)

Line : 189
File : sessions.php