can not access images on my HTML code.

hi all

i am try to access image on my web page from backendless database where i store my images but i can access it .

it's url is like

1. "https://api.backendless.com/00000000-3824-3394-FF12-2170000000/v1/files/manuals/942/epcp_1108_02_z%2Blamborghini_murcielago%2Binterior.jpg";

but got message like ,yes i am loged in and i use true as paramer on my backendless api.

{"code":4000,"message":"User has no permissions for specified resource"}

what i want is,

i want to access image from my backendless database where i had store images.

Thanks