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 ('2d9bb09527ac9d28db53e2c154bf5f4d', -1, 1714393655, 1714393655, '12bf87e0', 23, 0)

Line : 158
File : sessions.php