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 ('1dfa7de1483b32970564b987c9f9b41f', -1, 1711698746, 1711698746, '2cde76c2', -10, 0, 0)

Line : 187
File : sessions.php