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) VALUES ('fe3d29f2c01d358402fdce0d6f53dfbd', -1, 1714308784, 1714308784, '0395fb9b', -10, 0)

Line : 158
File : sessions.php