503 Service Unavailable Error

Hoping someone can help, getting a "503 Service Unavailable No server is available to handle this request." error when trying to upload product in the admin panel.

Site is really slow and no idea what to do!

Have tried right clicking and 'inspect' - but there is no error message - see attached image.

Any help is much appreciated as really out of my depth here!

Also now getting an error with the orders page on the admin panel- can access all the other pages but when I go to


I just get a random image instead of the orders page.


This is what is showing instead of the orders page:

Possibly your store was hacked. Please contact CS-Cart support team so that they can examine the issue