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 ('4fb9274bc98020b72c5bc3b6a16c6a0c', -1, 1730489776, 1730489776, '12e138e9', -1, 0, 0)

Line : 195
File : sessions.php