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 ('f2d6c6bbe1c23eb01f43a26570a55aa4', -1, 1714313858, 1714313858, '1275bd07', 12, 0)

Line : 158
File : sessions.php