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 ('354e93b390df9a20688f533fba1f14b7', -1, 1753037386, 1753037386, '126109ae', 3, 0, 0)

Line : 189
File : sessions.php