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 ('4d7ebb07963d2ff3f84e8a17b438f742', -1, 1717294988, 1717294988, '038a4411', -4, 0, 0)

Line : 187
File : sessions.php