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 ('02ef8055ec0816e1a6664b77957bca81', -1, 1711656401, 1711656401, '2cdd2b58', 2, 0, 0)

Line : 187
File : sessions.php