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 ('c7ff9cedd03556042d5f9393edc8491a', -1, 1711720422, 1711720422, '03ebb4f5', -4, 0, 0)

Line : 187
File : sessions.php