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 ('43f90995bbe06c34f2091a8a9ec938ba', -1, 1713922823, 1713922823, '12dc6af1', -10, 0, 0)

Line : 187
File : sessions.php