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 ('4a6e8a3daa1191db3e9c84ade8ffc580', -1, 1714373739, 1714373739, '0d3b24cb', 8, 0)

Line : 158
File : sessions.php