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) VALUES ('56aaa201fd1c85c4f463433d73cd3d22', -1, 1558962138, 1558962138, '12ea3311', 1, 0)

Line : 158
File : sessions.php