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 ('ae796ff592b426e854b0055a170d8555', -1, 1713499797, 1713499797, '12bf9dba', 3, 0, 0)

Line : 187
File : sessions.php