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 ('e81c050e52f784c661848657da92f14b', -1, 1714721545, 1714721545, '12756b5a', 20, 0)

Line : 158
File : sessions.php