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 ('9157335d726df100a1f97e10a5315a2f', -1, 1713520220, 1713520220, '0395e5fd', -10, 0, 0)

Line : 187
File : sessions.php