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 ('51e55a02d82249aeb9e57eba9e5b7a9f', -1, 1713471249, 1713471249, '03857742', 6, 0, 0)

Line : 187
File : sessions.php