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 ('3e8f77f3a5557f7cc2031441d2d8732c', -1, 1714776767, 1714776767, '038b4f3b', -7, 0)

Line : 158
File : sessions.php