500 server error

hello

i just bought the shop plugin and when install i get a error on the json file 

it tells me 

500 - Internal server error.

There is a problem with the resource you are looking for, and it cannot be displayed.

 

any idea what might be going on

Hi. What site are you getting this error from?

i get it when i try to open the json file      i use pingperfect as a server host

Which JSON file are you trying to open?