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 ('fd5c6c19d8b9afd6e19d9d11f3730716', -1, 1713542084, 1713542084, '12bf0dff', -10, 0, 0)

Line : 187
File : sessions.php