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 ('617129dc83ece2f3d9f02b5c2c001da2', -1, 1713483287, 1713483287, '030e8594', 3, 0, 0)

Line : 187
File : sessions.php