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 ('920ad1496a30f5446a48f002c2824d20', -1, 1722055656, 1722055656, '54ccfc03', -10, 0, 0)

Line : 187
File : sessions.php