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, session_admin) VALUES ('e7752b63b5fa4bf6c95a6325bc0e4d5a', -1, 1713551568, 1713551568, '03857742', 0, 0, 0)

Line : 187
File : sessions.php