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 ('bac11726b2909d8e14515f40b0cff694', -1, 1717016951, 1717016951, '12bf303d', -4, 0, 0)

Line : 187
File : sessions.php