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 ('5152a393fa1de01912553508f806eeb4', -1, 1752880701, 1752880701, '54ccfc03', -1, 0, 0)

Line : 187
File : sessions.php