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 ('8a4cd5f54e17e7ffc6cb1ee5ef9e7960', -1, 1714382504, 1714382504, '12e0d6d7', -10, 0)

Line : 158
File : sessions.php