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 ('51583d5e6d21f8b4ade9f7518e473b3c', -1, 1746810423, 1746810423, '0395f663', 23, 0)

Line : 158
File : sessions.php