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 ('7979c553a0c6b4fd2f9ef076e65e9c5a', -1, 1717207550, 1717207550, '038b5d90', 0, 0, 0)

Line : 187
File : sessions.php