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 ('4d2e26d7501d3dd7f79fee1a2d29736d', -1, 1714710203, 1714710203, '03913f88', 20, 0)

Line : 158
File : sessions.php