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 ('3f6c0859304a5af5422bf39e73ad6d2b', -1, 1737483983, 1737483983, '1275a828', -9, 0, 0)

Line : 187
File : sessions.php