phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('78070670151bd8a6c15f5c4f4e94d2bc', -1, 1717096012, 1717096012, '1274ee45', -1, 0, 0)

Line : 187
File : sessions.php