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 ('f091c6aa2cb9a72b2c9aa5bcc9966190', -1, 1714784010, 1714784010, '03114f3b', -10, 0)

Line : 158
File : sessions.php