Elgg site became distorted


Our Elgg community site suddenly became distorted, and stays like this even after we asked the hosting company to restore the site + db.

In the developer tab of chrome we do not see any errors/missing files, but the site doesn't look good.

It seems like some of the css style are missing, and a lot of the pictures.

website url: iquality.co.il

it is a membership site

Thank you!