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 ('0572b396fea77ad444929c1c151de7e6', -1, 1711699189, 1711699189, '36e02b4f', -1, 0, 0)

Line : 187
File : sessions.php