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 ('2f56753aeef9b5cca2957b6941f6022a', -1, 1714208406, 1714208406, '12754684', -9, 0)

Line : 158
File : sessions.php