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 ('28b6f484e466dd352ff7b1ff3d61844c', -1, 1752607708, 1752607708, '54ccfc03', -4, 0, 0)

Line : 187
File : sessions.php