phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '0c97df4eb58281ee95c19768e37e85a3' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('0c97df4eb58281ee95c19768e37e85a3', -1, 1555813816, 1555813816, '22e42623', 17, 0, 0)

Line : 198
File : sessions.php