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 ('6d1f9760f3431dc6e683c6fb712f38e3', -1, 1569019399, 1569019399, '12cf88b8', -10, 0, 0)

Line : 189
File : sessions.php