Bricks builder for test server

Hi
We were using bricks in our main website which was hosted by someone else . As now I am transferring the website to godaddy . As right now its a test server and domain is not pointed . So all files and everything is transferred . In front end everything is same . In backend also all things are working . like bricks component , sections etc but we are getting white screen in the preview screen in back end . In console we are getting below error .
“Unchecked runtime.lastError: The message port closed before a response was received.” is this error due to a test server ? As we have the key for main domain .

We are having the same issue on a site. How did you end up getting this resolved @amagesoft?