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 ('d87b88d01b76d495cb1b8b3521f9c7d7', -1, 1771938240, 1771938240, 'd849d896', -4, 0, 0)

Line : 193
File : sessions.php