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 ('708ed62ba7a1c542b497c71e31d25348', -1, 1713301521, 1713301521, '03111c30', 7, 0, 0)

Line : 187
File : sessions.php