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 ('534b3b01d7b7a455cd1ddc2a828b6c38', -1, 1748508681, 1748508681, '038eaece', -9, 0, 0)

Line : 190
File : sessions.php