phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('2cdc6e9fd57bc15912bb68f3bad31a99', -1, 1728565965, 1728565965, '54ccfc03', -4, 0, 0)

Line : 187
File : sessions.php