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 ('4295b16c7abd550254b9053f0d6afe9d', -1, 1752880072, 1752880072, '54ccfc03', -4, 0, 0)

Line : 187
File : sessions.php