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 ('753b206ffc7c8ed56c81b878cbff4bb5', -1, 1717312312, 1717312312, '12d81fe0', -11, 0, 0)

Line : 187
File : sessions.php