Need Help With JSON Format - There was a transport-level error - (Unknown ERROR)

Hello,

I used to use Myjson as a way to get a link/URL for my feed and to update. I'm sure several of you know that Myjson went down. I had the info all set and had a template so if I needed to add a video, remove, etc. I would just adjust the template accordingly. Now that the website is down I lost that template. Since I was so reliant on that template I never really learned JSON.

I attempted to make my own and although it says it is a valid JSON, when I try to update the link and or ingest it I will get "There was a transport-level error - (Unknown ERROR)". I looked at other forums and found that it is most likely my structure/semantics.

I'm currently using amazon web service for my json file which is the same place where I put my video and thumbnail files.

I was hoping if someone could tell me what is wrong with my code. Or, if possible, a way to get my old template back or find a new one. Apologies if these are trivial things.