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 ('51a21d390816b7f0e4b17f8052cfd08c', -1, 1711680080, 1711680080, '54ccfc03', 0, 0, 0)

Line : 187
File : sessions.php