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 ('1308f88e0a8e31d7130b8d76f6b3c8aa', -1, 1714479140, 1714479140, '0390681d', 0, 0)

Line : 158
File : sessions.php