phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8df3ac885b21ed9e15e6468712f551ff', -1, 1711705889, 1711705889, '23acc219', -11, 0, 0)

Line : 193
File : sessions.php