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 ('6f4a62ff9df5543b2259a1dcd3dfe134', -1, 1568942403, 1568942403, '12ce107b', -9, 0, 0)

Line : 189
File : sessions.php