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 ('1c07ec80dc8aba3540af276f7c10c4f7', -1, 1714026097, 1714026097, '030e84d6', -1, 0, 0)

Line : 187
File : sessions.php