Recently there’s a data corruption which resulted in many website files missing.
Unfortunately we don’t have any backups. The data restoration is still in process but nobody can guarantee what and how much would get restored. The only way to get your site fully recovered is if you have your own backup avaliable.
Alternatively, there’s a not perfect solution which will not recover any images unless you still have them:
Check your Account > MySQL Databases. Then
The $table_prefix line may vary depending on your previous installation.