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 ('81661e603b8a0da26693b96f1cc0e7f7', -1, 1714285721, 1714285721, '03804e29', 7, 0)

Line : 158
File : sessions.php