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 ('50f7c8acf047d7dc4b1e62c21ea34f3b', -1, 1713583272, 1713583272, '12bd027a', -4, 0, 0)

Line : 187
File : sessions.php