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 ('f12e5b7d51b89a4d4cf60766b6a2f073', -1, 1752879600, 1752879600, '54ccfc03', -1, 0, 0)

Line : 187
File : sessions.php