Cannot install new theme

[kookietoby]

Hi. I installed the Shoes Store Responsive PrestaShop Theme - ET Chaussure theme on my prestashop cloud store (was told by the customer service chat line person that it was compatible with prestashop cloud) but when i click on 'use this theme' , it will either go to a blank screen (in chrome) or an error message "http 500 internal server error" (in IE) will appear with reasons being:

Most likely causes:

• The website is under maintenance.
  
• The website has a programming error.
  

The above is for the backoffice. When i login to the backoffice in a new page, it still shows the default theme is being used. The front office shows the default theme. 

 

Any advice?

 

If this can't be solved, can i get a refund for it?

 

I've tried emailing the customer service twice but have been ignored and its been four days.

 

Please let me know asap so that i can buy another theme if this can't work.

 

thanks!

 

Thanks in advance!

[vekia]

to debug your issue it will be necessary to turn on error reporting.

sadly, in prestashop cloud it's not possible